"dual" meaning in English

See dual in All languages combined, or Wiktionary

Adjective

IPA: /ˈdjuː.əl/ [UK], /ˈdʒuː.əl/ [UK], /ˈd(j)u.əl/ [US] Audio: en-uk-dual.ogg [UK]
enPR: dyo͞oʹəl, jo͞oʹəl, d(y)o͞o'əl Rhymes: -ʊəl Etymology: PIE word *dwóh₁ Borrowed from Latin dualis (“two”), from duo (“two”) + adjective suffix -alis. Etymology templates: {{l|ine-pro|*dwóh₁}} *dwóh₁, {{PIE word|en|dwóh₁}} PIE word *dwóh₁, {{bor|en|la|dualis|t=two}} Latin dualis (“two”), {{m|la|duo|t=two}} duo (“two”), {{m|la|-alis}} -alis Head templates: {{en-adj|-}} dual (not comparable)
  1. Characterized by having two (usually equivalent) components. Tags: not-comparable Synonyms: double, twin, dual Translations (having two components): от две части (ot dve časti) (Bulgarian), dual (Catalan), tweeledig (Dutch), duparta (Esperanto), duala (Esperanto), duobla (Esperanto), binara (Esperanto), kaksi- [in-compounds] (Finnish), kaksois- (Finnish), duaalinen (Finnish), duaali- (Finnish), double [feminine, masculine] (French), duel [masculine] (French), dual (French), kettős (Hungarian), dwi (Indonesian), duale (Italian), doppio (Italian), duālis (Latin), dooblit (Manx), dwoisty (Polish), podwójny (Polish), dual (Portuguese), двойно́й (dvojnój) (Russian), дво́йственный (dvójstvennyj) (Russian), dvojen (Slovene), doble (Spanish), dual (Spanish)
    Sense id: en-dual-en-adj-rHJxD07f Categories (other): English terms with collocations Disambiguation of 'having two components': 45 13 9 11 11 11
  2. Pertaining to two, pertaining to a pair of. Tags: not-comparable Synonyms: double, duplicate, twofold
    Sense id: en-dual-en-adj-PrgqISlv Categories (other): English terms with collocations
  3. (grammar) Pertaining to a grammatical number in certain languages that refers to two of something, such as a pair of shoes. Tags: not-comparable Categories (topical): Grammar Translations (in grammar): δυϊκός (duïkós) (Ancient Greek), مُثَنًّى (muṯannan) (Arabic), مُثَنَّى (muṯanna) [Gulf-Arabic] (Arabic), երկակի (erkaki) (Armenian), 雙數 [Hokkien] (Chinese), 双数 (siang-sò͘) [Hokkien] (Chinese), 雙數 (Chinese Cantonese), 双数 (soeng¹ sou³) (Chinese Cantonese), 雙數 (Chinese Mandarin), 双数 (shuāngshù) (Chinese Mandarin), duálový (Czech), dualis- (Dutch), tweevouds- (Dutch), kaksikko- [in-compounds] (Finnish), duaalinen (Finnish), duaali- [in-compounds] (Finnish), duel [masculine] (French), dual (German), זוגי (Hebrew), kettős (Hungarian), duális (Hungarian), dual (Indonesian), 双数 (sōsū) (alt: そうすう) (Japanese), dw (Middle Persian), naakigo (Navajo), podwójna [feminine] (Polish), dual (Portuguese), дво́йственный (dvójstvennyj) [masculine] (Russian), dvojinski (Slovene), dual (Spanish), dual (Swedish), dalawahan (Tagalog), ทวิพจน์ (Thai), telnumik (Volapük)
    Sense id: en-dual-en-adj-HpekxwvF Topics: grammar, human-sciences, linguistics, sciences Disambiguation of 'in grammar': 7 6 46 18 7 17
  4. (mathematics, physics) Exhibiting duality. Tags: not-comparable Categories (topical): Mathematics, Physics
    Sense id: en-dual-en-adj-1x0Buf6x Topics: mathematics, natural-sciences, physical-sciences, physics, sciences
  5. (linear algebra) Being the space of all linear functionals of (some other space). Tags: not-comparable Categories (topical): Linear algebra
    Sense id: en-dual-en-adj-Li6lcXGr Topics: linear-algebra, mathematics, sciences
  6. (category theory) Being the dual of some other category; containing the same objects but with source and target reversed for all morphisms. Tags: not-comparable Categories (topical): Category theory Synonyms: opposite
    Sense id: en-dual-en-adj-QieIBxf1 Categories (other): English entries with topic categories using raw markup Disambiguation of English entries with topic categories using raw markup: 7 7 4 7 9 14 4 4 5 20 18 Topics: category-theory, computing, engineering, mathematics, natural-sciences, physical-sciences, sciences
The following are not (yet) sense-disambiguated
Synonyms: du. [abbreviation] [grammar, linguistics, human-sciences, sciences], binary, double, dual, twin, twofold Hypernyms: plural Hyponyms: bipartite, dimerous [botany, biology, natural-sciences], duplex, dyadic, bipartible, bipartile Translations (double): مُثَنًّى (muṯannan) (Arabic), دَبَل (dabal) [Gulf-Arabic] (Arabic), двоен (dvoen) (Bulgarian), doble (Catalan), dubbel- (Dutch), duobla (Esperanto), kaksi- [in-compounds] (Finnish), kaksinkertainen (Finnish), double [feminine, masculine] (French), ganda (Indonesian), dooblit (Manx), podwójny (Polish), duplo (Portuguese), двойно́й (dvojnój) (Russian), двоя́кий (dvojákij) (Russian), сдво́енный (sdvójennyj) (Russian), dvojen (Slovene), doble (Spanish), dubbel- (Swedish), två- (Swedish), çift (Turkish)

Noun

IPA: /ˈdjuː.əl/ [UK], /ˈdʒuː.əl/ [UK], /ˈd(j)u.əl/ [US] Audio: en-uk-dual.ogg [UK] Forms: duals [plural]
enPR: dyo͞oʹəl, jo͞oʹəl, d(y)o͞o'əl Rhymes: -ʊəl Etymology: PIE word *dwóh₁ Borrowed from Latin dualis (“two”), from duo (“two”) + adjective suffix -alis. Etymology templates: {{l|ine-pro|*dwóh₁}} *dwóh₁, {{PIE word|en|dwóh₁}} PIE word *dwóh₁, {{bor|en|la|dualis|t=two}} Latin dualis (“two”), {{m|la|duo|t=two}} duo (“two”), {{m|la|-alis}} -alis Head templates: {{en-noun}} dual (plural duals)
  1. Of an item that is one of a pair, the other item in the pair.
    Sense id: en-dual-en-noun-dELxM2EA
  2. (geometry) Of a regular polyhedron with V vertices and F faces, the regular polyhedron having F vertices and V faces. Categories (topical): Geometry
    Sense id: en-dual-en-noun-xxlV7NzE Topics: geometry, mathematics, sciences
  3. (grammar) The dual number. Categories (topical): Grammar, Two Related terms (grammatical numbers): grammatical number Translations (grammatical number of a noun marking two of something): δυϊκόν (duïkón) [neuter] (Ancient Greek), مُثَنَّى (muṯannā) (Arabic), երկակի (erkaki) (Armenian), երկակի թիվ (erkaki tʿiv) (Armenian), duál [masculine] (Czech), dvojné číslo [neuter] (Czech), dualis [common-gender] (Danish), dualis [masculine] (Dutch), tweevoud [neuter] (Dutch), tvítal [neuter] (Faroese), kaksikko (Finnish), duel [masculine] (French), Dual [masculine] (German), Zweizahl [feminine] (German), kettős szám (Hungarian), duális (Hungarian), déach (Irish), 双数形 (sōsūkē) (alt: そうすうけい) (Japanese), nizhdiltʼéhígo (Navajo), dualis [masculine] (Norwegian Bokmål), totall [neuter] (Norwegian Bokmål), liczba podwójna [feminine] (Polish), dual [masculine] (Portuguese), дво́йственное число́ (dvójstvennoje čisló) [masculine] (Russian), двојѝна [Cyrillic, feminine] (Serbo-Croatian), dvojìna [Roman, feminine] (Serbo-Croatian), dvojina [feminine] (Slovene), dualis [common-gender] (Swedish), ทวิพจน์ (Thai), telnum (Volapük)
    Sense id: en-dual-en-noun-qjazcOPB Disambiguation of Two: 10 15 9 13 5 5 4 3 20 10 7 Topics: grammar, human-sciences, linguistics, sciences Disambiguation of 'grammatical numbers': 9 10 71 10 Disambiguation of 'grammatical number of a noun marking two of something': 9 16 56 19
  4. (mathematics) Of a vector in an inner product space, the linear functional corresponding to taking the inner product with that vector. The set of all duals is a vector space called the dual space. Categories (topical): Mathematics
    Sense id: en-dual-en-noun-PG0T6Nl2 Categories (other): English entries with incorrect language header, English entries with topic categories using raw markup Disambiguation of English entries with incorrect language header: 8 4 5 10 13 14 1 6 5 19 15 Disambiguation of English entries with topic categories using raw markup: 7 7 4 7 9 14 4 4 5 20 18 Topics: mathematics, sciences
The following are not (yet) sense-disambiguated
Synonyms: du. [abbreviation] [grammar, linguistics, human-sciences, sciences] Derived forms: categorical dual, first-person dual, second-person dual, self-dual, third-person dual Related terms: singular, trial, quadral, quintal, paucal, plural, unal, duel

Verb

IPA: /ˈdjuː.əl/ [UK], /ˈdʒuː.əl/ [UK], /ˈd(j)u.əl/ [US] Audio: en-uk-dual.ogg [UK] Forms: duals [present, singular, third-person], dualling [UK, participle, present], dualing [US, participle, present], dualled [UK, participle, past], dualled [UK, past], dualed [US, participle, past], dualed [US, past]
enPR: dyo͞oʹəl, jo͞oʹəl, d(y)o͞o'əl Rhymes: -ʊəl Etymology: PIE word *dwóh₁ Borrowed from Latin dualis (“two”), from duo (“two”) + adjective suffix -alis. Etymology templates: {{l|ine-pro|*dwóh₁}} *dwóh₁, {{PIE word|en|dwóh₁}} PIE word *dwóh₁, {{bor|en|la|dualis|t=two}} Latin dualis (“two”), {{m|la|duo|t=two}} duo (“two”), {{m|la|-alis}} -alis Head templates: {{en-verb|++|past2=dualed|past2_qual=US|past_qual=UK|pres_ptc2=dualing|pres_ptc2_qual=US|pres_ptc_qual=UK}} dual (third-person singular simple present duals, present participle (UK) dualling or (US) dualing, simple past and past participle (UK) dualled or (US) dualed)
  1. (transitive) To convert from single to dual; specifically, to convert a single-carriageway road to a dual carriageway. Tags: transitive
    Sense id: en-dual-en-verb-ATbY6IbA Categories (other): English entries with topic categories using raw markup Disambiguation of English entries with topic categories using raw markup: 7 7 4 7 9 14 4 4 5 20 18
The following are not (yet) sense-disambiguated
Synonyms: du. [abbreviation] [grammar, linguistics, human-sciences, sciences]

Inflected forms

Alternative forms

Download JSON data for dual meaning in English (33.0kB)

{
  "derived": [
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual audio"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual-band"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual-boot"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual boot"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual cab"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual citizen"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual citizenship"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual-clutch gearbox"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual-coding theory"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual control"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual earner"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual economy"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual-edged sword"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual-exceptional"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual federalism"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual-frequency"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual graph"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual heritage"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dualism"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "duality"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual mandate"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual meet"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual mode"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual-mode"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual nationality"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual offence"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual phenomenology"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual photon absorptiometry"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual polyhedron"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual-ported"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual primary"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual-purpose"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual resident"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual school"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual-sector model"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual-SIM"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual SIM"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual tone multi-frequency"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual-tropic"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual-use"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual-use research of concern"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "dual-voltage"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "Hodge dual"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "non-self-dual"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "word": "Taoist dual cultivation"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "ine-pro",
        "2": "*dwóh₁"
      },
      "expansion": "*dwóh₁",
      "name": "l"
    },
    {
      "args": {
        "1": "en",
        "2": "dwóh₁"
      },
      "expansion": "PIE word\n *dwóh₁",
      "name": "PIE word"
    },
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "dualis",
        "t": "two"
      },
      "expansion": "Latin dualis (“two”)",
      "name": "bor"
    },
    {
      "args": {
        "1": "la",
        "2": "duo",
        "t": "two"
      },
      "expansion": "duo (“two”)",
      "name": "m"
    },
    {
      "args": {
        "1": "la",
        "2": "-alis"
      },
      "expansion": "-alis",
      "name": "m"
    }
  ],
  "etymology_text": "PIE word\n *dwóh₁\nBorrowed from Latin dualis (“two”), from duo (“two”) + adjective suffix -alis.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "dual (not comparable)",
      "name": "en-adj"
    }
  ],
  "hypernyms": [
    {
      "_dis1": "0 0 0 0 0 0",
      "source": "Thesaurus:dual",
      "word": "plural"
    }
  ],
  "hyponyms": [
    {
      "_dis1": "0 0 0 0 0 0",
      "source": "Thesaurus:dual",
      "word": "bipartite"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "source": "Thesaurus:dual",
      "topics": [
        "botany",
        "biology",
        "natural-sciences"
      ],
      "word": "dimerous"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "source": "Thesaurus:dual",
      "word": "duplex"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "source": "Thesaurus:dual",
      "word": "dyadic"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "source": "Thesaurus:dual",
      "word": "bipartible"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "source": "Thesaurus:dual",
      "word": "bipartile"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English terms with collocations",
          "parents": [
            "Terms with collocations",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "a dual-motor vehicle"
        }
      ],
      "glosses": [
        "Characterized by having two (usually equivalent) components."
      ],
      "id": "en-dual-en-adj-rHJxD07f",
      "links": [
        [
          "two",
          "two"
        ]
      ],
      "synonyms": [
        {
          "word": "double"
        },
        {
          "word": "twin"
        },
        {
          "word": "dual"
        }
      ],
      "tags": [
        "not-comparable"
      ],
      "translations": [
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "bg",
          "lang": "Bulgarian",
          "roman": "ot dve časti",
          "sense": "having two components",
          "word": "от две части"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "ca",
          "lang": "Catalan",
          "sense": "having two components",
          "word": "dual"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "nl",
          "lang": "Dutch",
          "sense": "having two components",
          "word": "tweeledig"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "eo",
          "lang": "Esperanto",
          "sense": "having two components",
          "word": "duparta"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "eo",
          "lang": "Esperanto",
          "sense": "having two components",
          "word": "duala"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "eo",
          "lang": "Esperanto",
          "sense": "having two components",
          "word": "duobla"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "eo",
          "lang": "Esperanto",
          "sense": "having two components",
          "word": "binara"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "fi",
          "lang": "Finnish",
          "sense": "having two components",
          "tags": [
            "in-compounds"
          ],
          "word": "kaksi-"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "fi",
          "lang": "Finnish",
          "sense": "having two components",
          "word": "kaksois-"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "fi",
          "lang": "Finnish",
          "sense": "having two components",
          "word": "duaalinen"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "fi",
          "lang": "Finnish",
          "sense": "having two components",
          "word": "duaali-"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "fr",
          "lang": "French",
          "sense": "having two components",
          "tags": [
            "feminine",
            "masculine"
          ],
          "word": "double"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "fr",
          "lang": "French",
          "sense": "having two components",
          "tags": [
            "masculine"
          ],
          "word": "duel"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "fr",
          "lang": "French",
          "sense": "having two components",
          "word": "dual"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "hu",
          "lang": "Hungarian",
          "sense": "having two components",
          "word": "kettős"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "id",
          "lang": "Indonesian",
          "sense": "having two components",
          "word": "dwi"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "it",
          "lang": "Italian",
          "sense": "having two components",
          "word": "duale"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "it",
          "lang": "Italian",
          "sense": "having two components",
          "word": "doppio"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "la",
          "lang": "Latin",
          "sense": "having two components",
          "word": "duālis"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "gv",
          "lang": "Manx",
          "sense": "having two components",
          "word": "dooblit"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "pl",
          "lang": "Polish",
          "sense": "having two components",
          "word": "dwoisty"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "pl",
          "lang": "Polish",
          "sense": "having two components",
          "word": "podwójny"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "pt",
          "lang": "Portuguese",
          "sense": "having two components",
          "word": "dual"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "ru",
          "lang": "Russian",
          "roman": "dvojnój",
          "sense": "having two components",
          "word": "двойно́й"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "ru",
          "lang": "Russian",
          "roman": "dvójstvennyj",
          "sense": "having two components",
          "word": "дво́йственный"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "sl",
          "lang": "Slovene",
          "sense": "having two components",
          "word": "dvojen"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "es",
          "lang": "Spanish",
          "sense": "having two components",
          "word": "doble"
        },
        {
          "_dis1": "45 13 9 11 11 11",
          "code": "es",
          "lang": "Spanish",
          "sense": "having two components",
          "word": "dual"
        }
      ]
    },
    {
      "categories": [
        {
          "kind": "other",
          "name": "English terms with collocations",
          "parents": [
            "Terms with collocations",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "dual engine failure"
        },
        {
          "text": "dual citizenship"
        },
        {
          "ref": "2020, Grace Ying May, “Women Disciplining Men: A Biblical Pattern of Leadership”, in Aída Besançon Spencer, William David Spencer, editors, Christian Egalitarian Leadership: Empowering the Whole Church According to the Scriptures, page 48",
          "text": "Both Deborah and Samuel held dual roles as judges and prophets.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Pertaining to two, pertaining to a pair of."
      ],
      "id": "en-dual-en-adj-PrgqISlv",
      "links": [
        [
          "two",
          "two"
        ],
        [
          "pair",
          "pair"
        ]
      ],
      "synonyms": [
        {
          "word": "double"
        },
        {
          "word": "duplicate"
        },
        {
          "word": "twofold"
        }
      ],
      "tags": [
        "not-comparable"
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Grammar",
          "orig": "en:Grammar",
          "parents": [
            "Linguistics",
            "Language",
            "Social sciences",
            "Communication",
            "Sciences",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "Modern Arabic displays a dual number, as did Homeric Greek."
        }
      ],
      "glosses": [
        "Pertaining to a grammatical number in certain languages that refers to two of something, such as a pair of shoes."
      ],
      "id": "en-dual-en-adj-HpekxwvF",
      "links": [
        [
          "grammar",
          "grammar"
        ],
        [
          "grammatical",
          "grammatical"
        ],
        [
          "number",
          "number#English:_grammar"
        ]
      ],
      "raw_glosses": [
        "(grammar) Pertaining to a grammatical number in certain languages that refers to two of something, such as a pair of shoes."
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "grammar",
        "human-sciences",
        "linguistics",
        "sciences"
      ],
      "translations": [
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "ar",
          "lang": "Arabic",
          "roman": "muṯannan",
          "sense": "in grammar",
          "word": "مُثَنًّى"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "afb",
          "lang": "Arabic",
          "roman": "muṯanna",
          "sense": "in grammar",
          "tags": [
            "Gulf-Arabic"
          ],
          "word": "مُثَنَّى"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "hy",
          "lang": "Armenian",
          "roman": "erkaki",
          "sense": "in grammar",
          "word": "երկակի"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "yue",
          "lang": "Chinese Cantonese",
          "sense": "in grammar",
          "word": "雙數"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "yue",
          "lang": "Chinese Cantonese",
          "roman": "soeng¹ sou³",
          "sense": "in grammar",
          "word": "双数"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "nan-hbl",
          "lang": "Chinese",
          "sense": "in grammar",
          "tags": [
            "Hokkien"
          ],
          "word": "雙數"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "nan-hbl",
          "lang": "Chinese",
          "roman": "siang-sò͘",
          "sense": "in grammar",
          "tags": [
            "Hokkien"
          ],
          "word": "双数"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "sense": "in grammar",
          "word": "雙數"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "shuāngshù",
          "sense": "in grammar",
          "word": "双数"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "cs",
          "lang": "Czech",
          "sense": "in grammar",
          "word": "duálový"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "nl",
          "lang": "Dutch",
          "sense": "in grammar",
          "word": "dualis-"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "nl",
          "lang": "Dutch",
          "sense": "in grammar",
          "word": "tweevouds-"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "fi",
          "lang": "Finnish",
          "sense": "in grammar",
          "tags": [
            "in-compounds"
          ],
          "word": "kaksikko-"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "fi",
          "lang": "Finnish",
          "sense": "in grammar",
          "word": "duaalinen"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "fi",
          "lang": "Finnish",
          "sense": "in grammar",
          "tags": [
            "in-compounds"
          ],
          "word": "duaali-"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "fr",
          "lang": "French",
          "sense": "in grammar",
          "tags": [
            "masculine"
          ],
          "word": "duel"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "de",
          "lang": "German",
          "sense": "in grammar",
          "word": "dual"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "grc",
          "lang": "Ancient Greek",
          "roman": "duïkós",
          "sense": "in grammar",
          "word": "δυϊκός"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "he",
          "lang": "Hebrew",
          "sense": "in grammar",
          "word": "זוגי"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "hu",
          "lang": "Hungarian",
          "sense": "in grammar",
          "word": "kettős"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "hu",
          "lang": "Hungarian",
          "sense": "in grammar",
          "word": "duális"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "id",
          "lang": "Indonesian",
          "sense": "in grammar",
          "word": "dual"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "alt": "そうすう",
          "code": "ja",
          "lang": "Japanese",
          "roman": "sōsū",
          "sense": "in grammar",
          "word": "双数"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "pal",
          "lang": "Middle Persian",
          "sense": "in grammar",
          "word": "dw"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "nv",
          "lang": "Navajo",
          "sense": "in grammar",
          "word": "naakigo"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "pl",
          "lang": "Polish",
          "sense": "in grammar",
          "tags": [
            "feminine"
          ],
          "word": "podwójna"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "pt",
          "lang": "Portuguese",
          "sense": "in grammar",
          "word": "dual"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "ru",
          "lang": "Russian",
          "roman": "dvójstvennyj",
          "sense": "in grammar",
          "tags": [
            "masculine"
          ],
          "word": "дво́йственный"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "sl",
          "lang": "Slovene",
          "sense": "in grammar",
          "word": "dvojinski"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "es",
          "lang": "Spanish",
          "sense": "in grammar",
          "word": "dual"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "sv",
          "lang": "Swedish",
          "sense": "in grammar",
          "word": "dual"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "tl",
          "lang": "Tagalog",
          "sense": "in grammar",
          "word": "dalawahan"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "th",
          "lang": "Thai",
          "sense": "in grammar",
          "word": "ทวิพจน์"
        },
        {
          "_dis1": "7 6 46 18 7 17",
          "code": "vo",
          "lang": "Volapük",
          "sense": "in grammar",
          "word": "telnumik"
        }
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Mathematics",
          "orig": "en:Mathematics",
          "parents": [
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Physics",
          "orig": "en:Physics",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Exhibiting duality."
      ],
      "id": "en-dual-en-adj-1x0Buf6x",
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "physics",
          "physics"
        ],
        [
          "duality",
          "duality"
        ]
      ],
      "raw_glosses": [
        "(mathematics, physics) Exhibiting duality."
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "physics",
        "sciences"
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Linear algebra",
          "orig": "en:Linear algebra",
          "parents": [
            "Algebra",
            "Mathematics",
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2012, Doug Fisher, Hans-J. Lenz, Learning from Data: Artificial Intelligence and Statistics V, Springer Science & Business Media, page 81",
          "text": "Accordingly, a hyperplane in the sample space is dual to a subspace in the variable space.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Being the space of all linear functionals of (some other space)."
      ],
      "id": "en-dual-en-adj-Li6lcXGr",
      "links": [
        [
          "linear algebra",
          "linear algebra"
        ],
        [
          "linear functional",
          "linear functional"
        ]
      ],
      "raw_glosses": [
        "(linear algebra) Being the space of all linear functionals of (some other space)."
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "linear-algebra",
        "mathematics",
        "sciences"
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Category theory",
          "orig": "en:Category theory",
          "parents": [
            "Mathematics",
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "7 7 4 7 9 14 4 4 5 20 18",
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "ref": "1992, Colin McLarty, Elementary Categories, Elementary Toposes, Clarendon Press, page 77",
          "text": "Every category is dual to its own dual, so if a statement holds in all categories so does its dual.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Being the dual of some other category; containing the same objects but with source and target reversed for all morphisms."
      ],
      "id": "en-dual-en-adj-QieIBxf1",
      "links": [
        [
          "category theory",
          "category theory"
        ],
        [
          "dual",
          "dual#Noun"
        ],
        [
          "morphisms",
          "morphisms"
        ]
      ],
      "raw_glosses": [
        "(category theory) Being the dual of some other category; containing the same objects but with source and target reversed for all morphisms."
      ],
      "synonyms": [
        {
          "word": "opposite"
        }
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "category-theory",
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈdjuː.əl/",
      "tags": [
        "UK"
      ]
    },
    {
      "ipa": "/ˈdʒuː.əl/",
      "tags": [
        "UK"
      ]
    },
    {
      "ipa": "/ˈd(j)u.əl/",
      "tags": [
        "US"
      ]
    },
    {
      "rhymes": "-ʊəl"
    },
    {
      "homophone": "duel"
    },
    {
      "homophone": "jewel (with yod coalescence)"
    },
    {
      "audio": "en-uk-dual.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/a/a0/En-uk-dual.ogg/En-uk-dual.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/a/a0/En-uk-dual.ogg",
      "tags": [
        "UK"
      ],
      "text": "Audio (UK)"
    },
    {
      "enpr": "dyo͞oʹəl, jo͞oʹəl"
    },
    {
      "enpr": "d(y)o͞o'əl"
    }
  ],
  "synonyms": [
    {
      "_dis1": "0 0 0 0 0 0 0 0 0 0 0",
      "tags": [
        "abbreviation"
      ],
      "topics": [
        "grammar",
        "linguistics",
        "human-sciences",
        "sciences"
      ],
      "word": "du."
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "source": "Thesaurus:dual",
      "word": "binary"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "source": "Thesaurus:dual",
      "word": "double"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "source": "Thesaurus:dual",
      "word": "dual"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "source": "Thesaurus:dual",
      "word": "twin"
    },
    {
      "_dis1": "0 0 0 0 0 0",
      "source": "Thesaurus:dual",
      "word": "twofold"
    }
  ],
  "translations": [
    {
      "_dis1": "49 51 0 0 0 0",
      "code": "ar",
      "lang": "Arabic",
      "roman": "muṯannan",
      "sense": "double",
      "word": "مُثَنًّى"
    },
    {
      "_dis1": "49 51 0 0 0 0",
      "code": "afb",
      "lang": "Arabic",
      "roman": "dabal",
      "sense": "double",
      "tags": [
        "Gulf-Arabic"
      ],
      "word": "دَبَل"
    },
    {
      "_dis1": "49 51 0 0 0 0",
      "code": "bg",
      "lang": "Bulgarian",
      "roman": "dvoen",
      "sense": "double",
      "word": "двоен"
    },
    {
      "_dis1": "49 51 0 0 0 0",
      "code": "ca",
      "lang": "Catalan",
      "sense": "double",
      "word": "doble"
    },
    {
      "_dis1": "49 51 0 0 0 0",
      "code": "nl",
      "lang": "Dutch",
      "sense": "double",
      "word": "dubbel-"
    },
    {
      "_dis1": "49 51 0 0 0 0",
      "code": "eo",
      "lang": "Esperanto",
      "sense": "double",
      "word": "duobla"
    },
    {
      "_dis1": "49 51 0 0 0 0",
      "code": "fi",
      "lang": "Finnish",
      "sense": "double",
      "tags": [
        "in-compounds"
      ],
      "word": "kaksi-"
    },
    {
      "_dis1": "49 51 0 0 0 0",
      "code": "fi",
      "lang": "Finnish",
      "sense": "double",
      "word": "kaksinkertainen"
    },
    {
      "_dis1": "49 51 0 0 0 0",
      "code": "fr",
      "lang": "French",
      "sense": "double",
      "tags": [
        "feminine",
        "masculine"
      ],
      "word": "double"
    },
    {
      "_dis1": "49 51 0 0 0 0",
      "code": "id",
      "lang": "Indonesian",
      "sense": "double",
      "word": "ganda"
    },
    {
      "_dis1": "49 51 0 0 0 0",
      "code": "gv",
      "lang": "Manx",
      "sense": "double",
      "word": "dooblit"
    },
    {
      "_dis1": "49 51 0 0 0 0",
      "code": "pl",
      "lang": "Polish",
      "sense": "double",
      "word": "podwójny"
    },
    {
      "_dis1": "49 51 0 0 0 0",
      "code": "pt",
      "lang": "Portuguese",
      "sense": "double",
      "word": "duplo"
    },
    {
      "_dis1": "49 51 0 0 0 0",
      "code": "ru",
      "lang": "Russian",
      "roman": "dvojnój",
      "sense": "double",
      "word": "двойно́й"
    },
    {
      "_dis1": "49 51 0 0 0 0",
      "code": "ru",
      "lang": "Russian",
      "roman": "dvojákij",
      "sense": "double",
      "word": "двоя́кий"
    },
    {
      "_dis1": "49 51 0 0 0 0",
      "code": "ru",
      "lang": "Russian",
      "roman": "sdvójennyj",
      "sense": "double",
      "word": "сдво́енный"
    },
    {
      "_dis1": "49 51 0 0 0 0",
      "code": "sl",
      "lang": "Slovene",
      "sense": "double",
      "word": "dvojen"
    },
    {
      "_dis1": "49 51 0 0 0 0",
      "code": "es",
      "lang": "Spanish",
      "sense": "double",
      "word": "doble"
    },
    {
      "_dis1": "49 51 0 0 0 0",
      "code": "sv",
      "lang": "Swedish",
      "sense": "double",
      "word": "dubbel-"
    },
    {
      "_dis1": "49 51 0 0 0 0",
      "code": "sv",
      "lang": "Swedish",
      "sense": "double",
      "word": "två-"
    },
    {
      "_dis1": "49 51 0 0 0 0",
      "code": "tr",
      "lang": "Turkish",
      "sense": "double",
      "word": "çift"
    }
  ],
  "wikipedia": [
    "Dual (grammatical number)",
    "Duality"
  ],
  "word": "dual"
}

{
  "derived": [
    {
      "_dis1": "0 0 0 0",
      "word": "categorical dual"
    },
    {
      "_dis1": "0 0 0 0",
      "word": "first-person dual"
    },
    {
      "_dis1": "0 0 0 0",
      "word": "second-person dual"
    },
    {
      "_dis1": "0 0 0 0",
      "word": "self-dual"
    },
    {
      "_dis1": "0 0 0 0",
      "word": "third-person dual"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "ine-pro",
        "2": "*dwóh₁"
      },
      "expansion": "*dwóh₁",
      "name": "l"
    },
    {
      "args": {
        "1": "en",
        "2": "dwóh₁"
      },
      "expansion": "PIE word\n *dwóh₁",
      "name": "PIE word"
    },
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "dualis",
        "t": "two"
      },
      "expansion": "Latin dualis (“two”)",
      "name": "bor"
    },
    {
      "args": {
        "1": "la",
        "2": "duo",
        "t": "two"
      },
      "expansion": "duo (“two”)",
      "name": "m"
    },
    {
      "args": {
        "1": "la",
        "2": "-alis"
      },
      "expansion": "-alis",
      "name": "m"
    }
  ],
  "etymology_text": "PIE word\n *dwóh₁\nBorrowed from Latin dualis (“two”), from duo (“two”) + adjective suffix -alis.",
  "forms": [
    {
      "form": "duals",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "dual (plural duals)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "_dis1": "0 0 0 0",
      "word": "singular"
    },
    {
      "_dis1": "0 0 0 0",
      "word": "trial"
    },
    {
      "_dis1": "0 0 0 0",
      "word": "quadral"
    },
    {
      "_dis1": "0 0 0 0",
      "word": "quintal"
    },
    {
      "_dis1": "0 0 0 0",
      "word": "paucal"
    },
    {
      "_dis1": "0 0 0 0",
      "word": "plural"
    },
    {
      "_dis1": "0 0 0 0",
      "word": "unal"
    },
    {
      "_dis1": "0 0 0 0",
      "word": "duel"
    }
  ],
  "senses": [
    {
      "glosses": [
        "Of an item that is one of a pair, the other item in the pair."
      ],
      "id": "en-dual-en-noun-dELxM2EA"
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Geometry",
          "orig": "en:Geometry",
          "parents": [
            "Mathematics",
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "The octahedron is the dual of the cube.",
          "type": "example"
        }
      ],
      "glosses": [
        "Of a regular polyhedron with V vertices and F faces, the regular polyhedron having F vertices and V faces."
      ],
      "id": "en-dual-en-noun-xxlV7NzE",
      "links": [
        [
          "geometry",
          "geometry"
        ],
        [
          "regular",
          "regular"
        ],
        [
          "polyhedron",
          "polyhedron"
        ]
      ],
      "raw_glosses": [
        "(geometry) Of a regular polyhedron with V vertices and F faces, the regular polyhedron having F vertices and V faces."
      ],
      "topics": [
        "geometry",
        "mathematics",
        "sciences"
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Grammar",
          "orig": "en:Grammar",
          "parents": [
            "Linguistics",
            "Language",
            "Social sciences",
            "Communication",
            "Sciences",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "10 15 9 13 5 5 4 3 20 10 7",
          "kind": "topical",
          "langcode": "en",
          "name": "Two",
          "orig": "en:Two",
          "parents": [
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "The dual number."
      ],
      "id": "en-dual-en-noun-qjazcOPB",
      "links": [
        [
          "grammar",
          "grammar"
        ],
        [
          "dual number",
          "dual number"
        ]
      ],
      "raw_glosses": [
        "(grammar) The dual number."
      ],
      "related": [
        {
          "_dis1": "9 10 71 10",
          "sense": "grammatical numbers",
          "word": "grammatical number"
        }
      ],
      "topics": [
        "grammar",
        "human-sciences",
        "linguistics",
        "sciences"
      ],
      "translations": [
        {
          "_dis1": "9 16 56 19",
          "code": "ar",
          "lang": "Arabic",
          "roman": "muṯannā",
          "sense": "grammatical number of a noun marking two of something",
          "word": "مُثَنَّى"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "hy",
          "lang": "Armenian",
          "roman": "erkaki",
          "sense": "grammatical number of a noun marking two of something",
          "word": "երկակի"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "hy",
          "lang": "Armenian",
          "roman": "erkaki tʿiv",
          "sense": "grammatical number of a noun marking two of something",
          "word": "երկակի թիվ"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "cs",
          "lang": "Czech",
          "sense": "grammatical number of a noun marking two of something",
          "tags": [
            "masculine"
          ],
          "word": "duál"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "cs",
          "lang": "Czech",
          "sense": "grammatical number of a noun marking two of something",
          "tags": [
            "neuter"
          ],
          "word": "dvojné číslo"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "da",
          "lang": "Danish",
          "sense": "grammatical number of a noun marking two of something",
          "tags": [
            "common-gender"
          ],
          "word": "dualis"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "nl",
          "lang": "Dutch",
          "sense": "grammatical number of a noun marking two of something",
          "tags": [
            "masculine"
          ],
          "word": "dualis"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "nl",
          "lang": "Dutch",
          "sense": "grammatical number of a noun marking two of something",
          "tags": [
            "neuter"
          ],
          "word": "tweevoud"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "fo",
          "lang": "Faroese",
          "sense": "grammatical number of a noun marking two of something",
          "tags": [
            "neuter"
          ],
          "word": "tvítal"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "fi",
          "lang": "Finnish",
          "sense": "grammatical number of a noun marking two of something",
          "word": "kaksikko"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "fr",
          "lang": "French",
          "sense": "grammatical number of a noun marking two of something",
          "tags": [
            "masculine"
          ],
          "word": "duel"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "de",
          "lang": "German",
          "sense": "grammatical number of a noun marking two of something",
          "tags": [
            "masculine"
          ],
          "word": "Dual"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "de",
          "lang": "German",
          "sense": "grammatical number of a noun marking two of something",
          "tags": [
            "feminine"
          ],
          "word": "Zweizahl"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "grc",
          "lang": "Ancient Greek",
          "roman": "duïkón",
          "sense": "grammatical number of a noun marking two of something",
          "tags": [
            "neuter"
          ],
          "word": "δυϊκόν"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "hu",
          "lang": "Hungarian",
          "sense": "grammatical number of a noun marking two of something",
          "word": "kettős szám"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "hu",
          "lang": "Hungarian",
          "sense": "grammatical number of a noun marking two of something",
          "word": "duális"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "ga",
          "lang": "Irish",
          "sense": "grammatical number of a noun marking two of something",
          "word": "déach"
        },
        {
          "_dis1": "9 16 56 19",
          "alt": "そうすうけい",
          "code": "ja",
          "lang": "Japanese",
          "roman": "sōsūkē",
          "sense": "grammatical number of a noun marking two of something",
          "word": "双数形"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "nv",
          "lang": "Navajo",
          "sense": "grammatical number of a noun marking two of something",
          "word": "nizhdiltʼéhígo"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "nb",
          "lang": "Norwegian Bokmål",
          "sense": "grammatical number of a noun marking two of something",
          "tags": [
            "masculine"
          ],
          "word": "dualis"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "nb",
          "lang": "Norwegian Bokmål",
          "sense": "grammatical number of a noun marking two of something",
          "tags": [
            "neuter"
          ],
          "word": "totall"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "pl",
          "lang": "Polish",
          "sense": "grammatical number of a noun marking two of something",
          "tags": [
            "feminine"
          ],
          "word": "liczba podwójna"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "pt",
          "lang": "Portuguese",
          "sense": "grammatical number of a noun marking two of something",
          "tags": [
            "masculine"
          ],
          "word": "dual"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "ru",
          "lang": "Russian",
          "roman": "dvójstvennoje čisló",
          "sense": "grammatical number of a noun marking two of something",
          "tags": [
            "masculine"
          ],
          "word": "дво́йственное число́"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "sh",
          "lang": "Serbo-Croatian",
          "sense": "grammatical number of a noun marking two of something",
          "tags": [
            "Cyrillic",
            "feminine"
          ],
          "word": "двојѝна"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "sh",
          "lang": "Serbo-Croatian",
          "sense": "grammatical number of a noun marking two of something",
          "tags": [
            "Roman",
            "feminine"
          ],
          "word": "dvojìna"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "sl",
          "lang": "Slovene",
          "sense": "grammatical number of a noun marking two of something",
          "tags": [
            "feminine"
          ],
          "word": "dvojina"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "sv",
          "lang": "Swedish",
          "sense": "grammatical number of a noun marking two of something",
          "tags": [
            "common-gender"
          ],
          "word": "dualis"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "th",
          "lang": "Thai",
          "sense": "grammatical number of a noun marking two of something",
          "word": "ทวิพจน์"
        },
        {
          "_dis1": "9 16 56 19",
          "code": "vo",
          "lang": "Volapük",
          "sense": "grammatical number of a noun marking two of something",
          "word": "telnum"
        }
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Mathematics",
          "orig": "en:Mathematics",
          "parents": [
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "8 4 5 10 13 14 1 6 5 19 15",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "7 7 4 7 9 14 4 4 5 20 18",
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Of a vector in an inner product space, the linear functional corresponding to taking the inner product with that vector. The set of all duals is a vector space called the dual space."
      ],
      "id": "en-dual-en-noun-PG0T6Nl2",
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "vector",
          "vector"
        ],
        [
          "inner product space",
          "inner product space"
        ],
        [
          "linear",
          "linear"
        ],
        [
          "functional",
          "functional"
        ],
        [
          "inner product",
          "inner product"
        ],
        [
          "vector space",
          "vector space"
        ],
        [
          "dual space",
          "dual space"
        ]
      ],
      "raw_glosses": [
        "(mathematics) Of a vector in an inner product space, the linear functional corresponding to taking the inner product with that vector. The set of all duals is a vector space called the dual space."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈdjuː.əl/",
      "tags": [
        "UK"
      ]
    },
    {
      "ipa": "/ˈdʒuː.əl/",
      "tags": [
        "UK"
      ]
    },
    {
      "ipa": "/ˈd(j)u.əl/",
      "tags": [
        "US"
      ]
    },
    {
      "rhymes": "-ʊəl"
    },
    {
      "homophone": "duel"
    },
    {
      "homophone": "jewel (with yod coalescence)"
    },
    {
      "audio": "en-uk-dual.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/a/a0/En-uk-dual.ogg/En-uk-dual.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/a/a0/En-uk-dual.ogg",
      "tags": [
        "UK"
      ],
      "text": "Audio (UK)"
    },
    {
      "enpr": "dyo͞oʹəl, jo͞oʹəl"
    },
    {
      "enpr": "d(y)o͞o'əl"
    }
  ],
  "synonyms": [
    {
      "_dis1": "0 0 0 0 0 0 0 0 0 0 0",
      "tags": [
        "abbreviation"
      ],
      "topics": [
        "grammar",
        "linguistics",
        "human-sciences",
        "sciences"
      ],
      "word": "du."
    }
  ],
  "wikipedia": [
    "Dual (grammatical number)",
    "Duality"
  ],
  "word": "dual"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "ine-pro",
        "2": "*dwóh₁"
      },
      "expansion": "*dwóh₁",
      "name": "l"
    },
    {
      "args": {
        "1": "en",
        "2": "dwóh₁"
      },
      "expansion": "PIE word\n *dwóh₁",
      "name": "PIE word"
    },
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "dualis",
        "t": "two"
      },
      "expansion": "Latin dualis (“two”)",
      "name": "bor"
    },
    {
      "args": {
        "1": "la",
        "2": "duo",
        "t": "two"
      },
      "expansion": "duo (“two”)",
      "name": "m"
    },
    {
      "args": {
        "1": "la",
        "2": "-alis"
      },
      "expansion": "-alis",
      "name": "m"
    }
  ],
  "etymology_text": "PIE word\n *dwóh₁\nBorrowed from Latin dualis (“two”), from duo (“two”) + adjective suffix -alis.",
  "forms": [
    {
      "form": "duals",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "dualling",
      "tags": [
        "UK",
        "participle",
        "present"
      ]
    },
    {
      "form": "dualing",
      "tags": [
        "US",
        "participle",
        "present"
      ]
    },
    {
      "form": "dualled",
      "tags": [
        "UK",
        "participle",
        "past"
      ]
    },
    {
      "form": "dualled",
      "tags": [
        "UK",
        "past"
      ]
    },
    {
      "form": "dualed",
      "tags": [
        "US",
        "participle",
        "past"
      ]
    },
    {
      "form": "dualed",
      "tags": [
        "US",
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "++",
        "past2": "dualed",
        "past2_qual": "US",
        "past_qual": "UK",
        "pres_ptc2": "dualing",
        "pres_ptc2_qual": "US",
        "pres_ptc_qual": "UK"
      },
      "expansion": "dual (third-person singular simple present duals, present participle (UK) dualling or (US) dualing, simple past and past participle (UK) dualled or (US) dualed)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "_dis": "7 7 4 7 9 14 4 4 5 20 18",
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "ref": "1994, Great Britain. Parliament. House of Commons, Parliamentary Debates",
          "text": "I have to declare an interest and I do so with some ambivalence because if the road is dualled it is likely to take half of my front garden.",
          "type": "quotation"
        },
        {
          "ref": "2006, David Lowe, Intermodal Freight Transport, page 163",
          "text": "The power generation and propulsion systems are dualled to accommodate component failure and maintain propulsion at reduced speed should any part of one system be lost.",
          "type": "quotation"
        },
        {
          "ref": "2021 September 22, “Network News: Nexus increases Tyne and Wear Metro train order to 46”, in RAIL, number 940, page 23",
          "text": "The investment will allow Nexus to increase service frequencies, reduce journey times, and improve reliability by dualling three sections of line between Pelaw and South Shields.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To convert from single to dual; specifically, to convert a single-carriageway road to a dual carriageway."
      ],
      "id": "en-dual-en-verb-ATbY6IbA",
      "links": [
        [
          "carriageway",
          "carriageway"
        ],
        [
          "dual carriageway",
          "dual carriageway"
        ]
      ],
      "raw_glosses": [
        "(transitive) To convert from single to dual; specifically, to convert a single-carriageway road to a dual carriageway."
      ],
      "tags": [
        "transitive"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈdjuː.əl/",
      "tags": [
        "UK"
      ]
    },
    {
      "ipa": "/ˈdʒuː.əl/",
      "tags": [
        "UK"
      ]
    },
    {
      "ipa": "/ˈd(j)u.əl/",
      "tags": [
        "US"
      ]
    },
    {
      "rhymes": "-ʊəl"
    },
    {
      "homophone": "duel"
    },
    {
      "homophone": "jewel (with yod coalescence)"
    },
    {
      "audio": "en-uk-dual.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/a/a0/En-uk-dual.ogg/En-uk-dual.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/a/a0/En-uk-dual.ogg",
      "tags": [
        "UK"
      ],
      "text": "Audio (UK)"
    },
    {
      "enpr": "dyo͞oʹəl, jo͞oʹəl"
    },
    {
      "enpr": "d(y)o͞o'əl"
    }
  ],
  "synonyms": [
    {
      "_dis1": "0 0 0 0 0 0 0 0 0 0 0",
      "tags": [
        "abbreviation"
      ],
      "topics": [
        "grammar",
        "linguistics",
        "human-sciences",
        "sciences"
      ],
      "word": "du."
    }
  ],
  "wikipedia": [
    "Dual (grammatical number)",
    "Duality"
  ],
  "word": "dual"
}
{
  "categories": [
    "English 2-syllable words",
    "English adjectives",
    "English countable nouns",
    "English entries with incorrect language header",
    "English entries with topic categories using raw markup",
    "English lemmas",
    "English nouns",
    "English terms borrowed from Latin",
    "English terms derived from Latin",
    "English terms derived from the Proto-Indo-European word *dwóh₁",
    "English terms with IPA pronunciation",
    "English terms with audio links",
    "English terms with homophones",
    "English uncomparable adjectives",
    "English verbs",
    "Requests for review of Interlingua translations",
    "Requests for review of Latin translations",
    "Requests for review of Romanian translations",
    "Rhymes:English/ʊəl",
    "Rhymes:English/ʊəl/2 syllables",
    "en:Two"
  ],
  "derived": [
    {
      "word": "dual audio"
    },
    {
      "word": "dual-band"
    },
    {
      "word": "dual-boot"
    },
    {
      "word": "dual boot"
    },
    {
      "word": "dual cab"
    },
    {
      "word": "dual citizen"
    },
    {
      "word": "dual citizenship"
    },
    {
      "word": "dual-clutch gearbox"
    },
    {
      "word": "dual-coding theory"
    },
    {
      "word": "dual control"
    },
    {
      "word": "dual earner"
    },
    {
      "word": "dual economy"
    },
    {
      "word": "dual-edged sword"
    },
    {
      "word": "dual-exceptional"
    },
    {
      "word": "dual federalism"
    },
    {
      "word": "dual-frequency"
    },
    {
      "word": "dual graph"
    },
    {
      "word": "dual heritage"
    },
    {
      "word": "dualism"
    },
    {
      "word": "duality"
    },
    {
      "word": "dual mandate"
    },
    {
      "word": "dual meet"
    },
    {
      "word": "dual mode"
    },
    {
      "word": "dual-mode"
    },
    {
      "word": "dual nationality"
    },
    {
      "word": "dual offence"
    },
    {
      "word": "dual phenomenology"
    },
    {
      "word": "dual photon absorptiometry"
    },
    {
      "word": "dual polyhedron"
    },
    {
      "word": "dual-ported"
    },
    {
      "word": "dual primary"
    },
    {
      "word": "dual-purpose"
    },
    {
      "word": "dual resident"
    },
    {
      "word": "dual school"
    },
    {
      "word": "dual-sector model"
    },
    {
      "word": "dual-SIM"
    },
    {
      "word": "dual SIM"
    },
    {
      "word": "dual tone multi-frequency"
    },
    {
      "word": "dual-tropic"
    },
    {
      "word": "dual-use"
    },
    {
      "word": "dual-use research of concern"
    },
    {
      "word": "dual-voltage"
    },
    {
      "word": "Hodge dual"
    },
    {
      "word": "non-self-dual"
    },
    {
      "word": "Taoist dual cultivation"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "ine-pro",
        "2": "*dwóh₁"
      },
      "expansion": "*dwóh₁",
      "name": "l"
    },
    {
      "args": {
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        "2": "dwóh₁"
      },
      "expansion": "PIE word\n *dwóh₁",
      "name": "PIE word"
    },
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "dualis",
        "t": "two"
      },
      "expansion": "Latin dualis (“two”)",
      "name": "bor"
    },
    {
      "args": {
        "1": "la",
        "2": "duo",
        "t": "two"
      },
      "expansion": "duo (“two”)",
      "name": "m"
    },
    {
      "args": {
        "1": "la",
        "2": "-alis"
      },
      "expansion": "-alis",
      "name": "m"
    }
  ],
  "etymology_text": "PIE word\n *dwóh₁\nBorrowed from Latin dualis (“two”), from duo (“two”) + adjective suffix -alis.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "dual (not comparable)",
      "name": "en-adj"
    }
  ],
  "hypernyms": [
    {
      "source": "Thesaurus:dual",
      "word": "plural"
    }
  ],
  "hyponyms": [
    {
      "source": "Thesaurus:dual",
      "word": "bipartite"
    },
    {
      "source": "Thesaurus:dual",
      "topics": [
        "botany",
        "biology",
        "natural-sciences"
      ],
      "word": "dimerous"
    },
    {
      "source": "Thesaurus:dual",
      "word": "duplex"
    },
    {
      "source": "Thesaurus:dual",
      "word": "dyadic"
    },
    {
      "source": "Thesaurus:dual",
      "word": "bipartible"
    },
    {
      "source": "Thesaurus:dual",
      "word": "bipartile"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English terms with collocations"
      ],
      "examples": [
        {
          "text": "a dual-motor vehicle"
        }
      ],
      "glosses": [
        "Characterized by having two (usually equivalent) components."
      ],
      "links": [
        [
          "two",
          "two"
        ]
      ],
      "synonyms": [
        {
          "word": "double"
        },
        {
          "word": "twin"
        },
        {
          "word": "dual"
        }
      ],
      "tags": [
        "not-comparable"
      ]
    },
    {
      "categories": [
        "English terms with collocations",
        "English terms with quotations"
      ],
      "examples": [
        {
          "text": "dual engine failure"
        },
        {
          "text": "dual citizenship"
        },
        {
          "ref": "2020, Grace Ying May, “Women Disciplining Men: A Biblical Pattern of Leadership”, in Aída Besançon Spencer, William David Spencer, editors, Christian Egalitarian Leadership: Empowering the Whole Church According to the Scriptures, page 48",
          "text": "Both Deborah and Samuel held dual roles as judges and prophets.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Pertaining to two, pertaining to a pair of."
      ],
      "links": [
        [
          "two",
          "two"
        ],
        [
          "pair",
          "pair"
        ]
      ],
      "synonyms": [
        {
          "word": "double"
        },
        {
          "word": "duplicate"
        },
        {
          "word": "twofold"
        }
      ],
      "tags": [
        "not-comparable"
      ]
    },
    {
      "categories": [
        "en:Grammar"
      ],
      "examples": [
        {
          "text": "Modern Arabic displays a dual number, as did Homeric Greek."
        }
      ],
      "glosses": [
        "Pertaining to a grammatical number in certain languages that refers to two of something, such as a pair of shoes."
      ],
      "links": [
        [
          "grammar",
          "grammar"
        ],
        [
          "grammatical",
          "grammatical"
        ],
        [
          "number",
          "number#English:_grammar"
        ]
      ],
      "raw_glosses": [
        "(grammar) Pertaining to a grammatical number in certain languages that refers to two of something, such as a pair of shoes."
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "grammar",
        "human-sciences",
        "linguistics",
        "sciences"
      ]
    },
    {
      "categories": [
        "en:Mathematics",
        "en:Physics"
      ],
      "glosses": [
        "Exhibiting duality."
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "physics",
          "physics"
        ],
        [
          "duality",
          "duality"
        ]
      ],
      "raw_glosses": [
        "(mathematics, physics) Exhibiting duality."
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "physics",
        "sciences"
      ]
    },
    {
      "categories": [
        "English terms with quotations",
        "en:Linear algebra"
      ],
      "examples": [
        {
          "ref": "2012, Doug Fisher, Hans-J. Lenz, Learning from Data: Artificial Intelligence and Statistics V, Springer Science & Business Media, page 81",
          "text": "Accordingly, a hyperplane in the sample space is dual to a subspace in the variable space.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Being the space of all linear functionals of (some other space)."
      ],
      "links": [
        [
          "linear algebra",
          "linear algebra"
        ],
        [
          "linear functional",
          "linear functional"
        ]
      ],
      "raw_glosses": [
        "(linear algebra) Being the space of all linear functionals of (some other space)."
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "linear-algebra",
        "mathematics",
        "sciences"
      ]
    },
    {
      "categories": [
        "English terms with quotations",
        "en:Category theory"
      ],
      "examples": [
        {
          "ref": "1992, Colin McLarty, Elementary Categories, Elementary Toposes, Clarendon Press, page 77",
          "text": "Every category is dual to its own dual, so if a statement holds in all categories so does its dual.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Being the dual of some other category; containing the same objects but with source and target reversed for all morphisms."
      ],
      "links": [
        [
          "category theory",
          "category theory"
        ],
        [
          "dual",
          "dual#Noun"
        ],
        [
          "morphisms",
          "morphisms"
        ]
      ],
      "raw_glosses": [
        "(category theory) Being the dual of some other category; containing the same objects but with source and target reversed for all morphisms."
      ],
      "synonyms": [
        {
          "word": "opposite"
        }
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "category-theory",
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈdjuː.əl/",
      "tags": [
        "UK"
      ]
    },
    {
      "ipa": "/ˈdʒuː.əl/",
      "tags": [
        "UK"
      ]
    },
    {
      "ipa": "/ˈd(j)u.əl/",
      "tags": [
        "US"
      ]
    },
    {
      "rhymes": "-ʊəl"
    },
    {
      "homophone": "duel"
    },
    {
      "homophone": "jewel (with yod coalescence)"
    },
    {
      "audio": "en-uk-dual.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/a/a0/En-uk-dual.ogg/En-uk-dual.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/a/a0/En-uk-dual.ogg",
      "tags": [
        "UK"
      ],
      "text": "Audio (UK)"
    },
    {
      "enpr": "dyo͞oʹəl, jo͞oʹəl"
    },
    {
      "enpr": "d(y)o͞o'əl"
    }
  ],
  "synonyms": [
    {
      "tags": [
        "abbreviation"
      ],
      "topics": [
        "grammar",
        "linguistics",
        "human-sciences",
        "sciences"
      ],
      "word": "du."
    },
    {
      "source": "Thesaurus:dual",
      "word": "binary"
    },
    {
      "source": "Thesaurus:dual",
      "word": "double"
    },
    {
      "source": "Thesaurus:dual",
      "word": "dual"
    },
    {
      "source": "Thesaurus:dual",
      "word": "twin"
    },
    {
      "source": "Thesaurus:dual",
      "word": "twofold"
    }
  ],
  "translations": [
    {
      "code": "bg",
      "lang": "Bulgarian",
      "roman": "ot dve časti",
      "sense": "having two components",
      "word": "от две части"
    },
    {
      "code": "ca",
      "lang": "Catalan",
      "sense": "having two components",
      "word": "dual"
    },
    {
      "code": "nl",
      "lang": "Dutch",
      "sense": "having two components",
      "word": "tweeledig"
    },
    {
      "code": "eo",
      "lang": "Esperanto",
      "sense": "having two components",
      "word": "duparta"
    },
    {
      "code": "eo",
      "lang": "Esperanto",
      "sense": "having two components",
      "word": "duala"
    },
    {
      "code": "eo",
      "lang": "Esperanto",
      "sense": "having two components",
      "word": "duobla"
    },
    {
      "code": "eo",
      "lang": "Esperanto",
      "sense": "having two components",
      "word": "binara"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "having two components",
      "tags": [
        "in-compounds"
      ],
      "word": "kaksi-"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "having two components",
      "word": "kaksois-"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "having two components",
      "word": "duaalinen"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "having two components",
      "word": "duaali-"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "having two components",
      "tags": [
        "feminine",
        "masculine"
      ],
      "word": "double"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "having two components",
      "tags": [
        "masculine"
      ],
      "word": "duel"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "having two components",
      "word": "dual"
    },
    {
      "code": "hu",
      "lang": "Hungarian",
      "sense": "having two components",
      "word": "kettős"
    },
    {
      "code": "id",
      "lang": "Indonesian",
      "sense": "having two components",
      "word": "dwi"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "having two components",
      "word": "duale"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "having two components",
      "word": "doppio"
    },
    {
      "code": "la",
      "lang": "Latin",
      "sense": "having two components",
      "word": "duālis"
    },
    {
      "code": "gv",
      "lang": "Manx",
      "sense": "having two components",
      "word": "dooblit"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "having two components",
      "word": "dwoisty"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "having two components",
      "word": "podwójny"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "having two components",
      "word": "dual"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "dvojnój",
      "sense": "having two components",
      "word": "двойно́й"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "dvójstvennyj",
      "sense": "having two components",
      "word": "дво́йственный"
    },
    {
      "code": "sl",
      "lang": "Slovene",
      "sense": "having two components",
      "word": "dvojen"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "having two components",
      "word": "doble"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "having two components",
      "word": "dual"
    },
    {
      "code": "ar",
      "lang": "Arabic",
      "roman": "muṯannan",
      "sense": "double",
      "word": "مُثَنًّى"
    },
    {
      "code": "afb",
      "lang": "Arabic",
      "roman": "dabal",
      "sense": "double",
      "tags": [
        "Gulf-Arabic"
      ],
      "word": "دَبَل"
    },
    {
      "code": "bg",
      "lang": "Bulgarian",
      "roman": "dvoen",
      "sense": "double",
      "word": "двоен"
    },
    {
      "code": "ca",
      "lang": "Catalan",
      "sense": "double",
      "word": "doble"
    },
    {
      "code": "nl",
      "lang": "Dutch",
      "sense": "double",
      "word": "dubbel-"
    },
    {
      "code": "eo",
      "lang": "Esperanto",
      "sense": "double",
      "word": "duobla"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "double",
      "tags": [
        "in-compounds"
      ],
      "word": "kaksi-"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "double",
      "word": "kaksinkertainen"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "double",
      "tags": [
        "feminine",
        "masculine"
      ],
      "word": "double"
    },
    {
      "code": "id",
      "lang": "Indonesian",
      "sense": "double",
      "word": "ganda"
    },
    {
      "code": "gv",
      "lang": "Manx",
      "sense": "double",
      "word": "dooblit"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "double",
      "word": "podwójny"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "double",
      "word": "duplo"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "dvojnój",
      "sense": "double",
      "word": "двойно́й"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "dvojákij",
      "sense": "double",
      "word": "двоя́кий"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "sdvójennyj",
      "sense": "double",
      "word": "сдво́енный"
    },
    {
      "code": "sl",
      "lang": "Slovene",
      "sense": "double",
      "word": "dvojen"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "double",
      "word": "doble"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "double",
      "word": "dubbel-"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "double",
      "word": "två-"
    },
    {
      "code": "tr",
      "lang": "Turkish",
      "sense": "double",
      "word": "çift"
    },
    {
      "code": "ar",
      "lang": "Arabic",
      "roman": "muṯannan",
      "sense": "in grammar",
      "word": "مُثَنًّى"
    },
    {
      "code": "afb",
      "lang": "Arabic",
      "roman": "muṯanna",
      "sense": "in grammar",
      "tags": [
        "Gulf-Arabic"
      ],
      "word": "مُثَنَّى"
    },
    {
      "code": "hy",
      "lang": "Armenian",
      "roman": "erkaki",
      "sense": "in grammar",
      "word": "երկակի"
    },
    {
      "code": "yue",
      "lang": "Chinese Cantonese",
      "sense": "in grammar",
      "word": "雙數"
    },
    {
      "code": "yue",
      "lang": "Chinese Cantonese",
      "roman": "soeng¹ sou³",
      "sense": "in grammar",
      "word": "双数"
    },
    {
      "code": "nan-hbl",
      "lang": "Chinese",
      "sense": "in grammar",
      "tags": [
        "Hokkien"
      ],
      "word": "雙數"
    },
    {
      "code": "nan-hbl",
      "lang": "Chinese",
      "roman": "siang-sò͘",
      "sense": "in grammar",
      "tags": [
        "Hokkien"
      ],
      "word": "双数"
    },
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "sense": "in grammar",
      "word": "雙數"
    },
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "shuāngshù",
      "sense": "in grammar",
      "word": "双数"
    },
    {
      "code": "cs",
      "lang": "Czech",
      "sense": "in grammar",
      "word": "duálový"
    },
    {
      "code": "nl",
      "lang": "Dutch",
      "sense": "in grammar",
      "word": "dualis-"
    },
    {
      "code": "nl",
      "lang": "Dutch",
      "sense": "in grammar",
      "word": "tweevouds-"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "in grammar",
      "tags": [
        "in-compounds"
      ],
      "word": "kaksikko-"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "in grammar",
      "word": "duaalinen"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "in grammar",
      "tags": [
        "in-compounds"
      ],
      "word": "duaali-"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "in grammar",
      "tags": [
        "masculine"
      ],
      "word": "duel"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "in grammar",
      "word": "dual"
    },
    {
      "code": "grc",
      "lang": "Ancient Greek",
      "roman": "duïkós",
      "sense": "in grammar",
      "word": "δυϊκός"
    },
    {
      "code": "he",
      "lang": "Hebrew",
      "sense": "in grammar",
      "word": "זוגי"
    },
    {
      "code": "hu",
      "lang": "Hungarian",
      "sense": "in grammar",
      "word": "kettős"
    },
    {
      "code": "hu",
      "lang": "Hungarian",
      "sense": "in grammar",
      "word": "duális"
    },
    {
      "code": "id",
      "lang": "Indonesian",
      "sense": "in grammar",
      "word": "dual"
    },
    {
      "alt": "そうすう",
      "code": "ja",
      "lang": "Japanese",
      "roman": "sōsū",
      "sense": "in grammar",
      "word": "双数"
    },
    {
      "code": "pal",
      "lang": "Middle Persian",
      "sense": "in grammar",
      "word": "dw"
    },
    {
      "code": "nv",
      "lang": "Navajo",
      "sense": "in grammar",
      "word": "naakigo"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "in grammar",
      "tags": [
        "feminine"
      ],
      "word": "podwójna"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "in grammar",
      "word": "dual"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "dvójstvennyj",
      "sense": "in grammar",
      "tags": [
        "masculine"
      ],
      "word": "дво́йственный"
    },
    {
      "code": "sl",
      "lang": "Slovene",
      "sense": "in grammar",
      "word": "dvojinski"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "in grammar",
      "word": "dual"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "in grammar",
      "word": "dual"
    },
    {
      "code": "tl",
      "lang": "Tagalog",
      "sense": "in grammar",
      "word": "dalawahan"
    },
    {
      "code": "th",
      "lang": "Thai",
      "sense": "in grammar",
      "word": "ทวิพจน์"
    },
    {
      "code": "vo",
      "lang": "Volapük",
      "sense": "in grammar",
      "word": "telnumik"
    }
  ],
  "wikipedia": [
    "Dual (grammatical number)",
    "Duality"
  ],
  "word": "dual"
}

{
  "categories": [
    "English 2-syllable words",
    "English adjectives",
    "English countable nouns",
    "English entries with incorrect language header",
    "English entries with topic categories using raw markup",
    "English lemmas",
    "English nouns",
    "English terms borrowed from Latin",
    "English terms derived from Latin",
    "English terms derived from the Proto-Indo-European word *dwóh₁",
    "English terms with IPA pronunciation",
    "English terms with audio links",
    "English terms with homophones",
    "English uncomparable adjectives",
    "English verbs",
    "Requests for review of Interlingua translations",
    "Requests for review of Latin translations",
    "Requests for review of Romanian translations",
    "Rhymes:English/ʊəl",
    "Rhymes:English/ʊəl/2 syllables",
    "en:Two"
  ],
  "derived": [
    {
      "word": "categorical dual"
    },
    {
      "word": "first-person dual"
    },
    {
      "word": "second-person dual"
    },
    {
      "word": "self-dual"
    },
    {
      "word": "third-person dual"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "ine-pro",
        "2": "*dwóh₁"
      },
      "expansion": "*dwóh₁",
      "name": "l"
    },
    {
      "args": {
        "1": "en",
        "2": "dwóh₁"
      },
      "expansion": "PIE word\n *dwóh₁",
      "name": "PIE word"
    },
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "dualis",
        "t": "two"
      },
      "expansion": "Latin dualis (“two”)",
      "name": "bor"
    },
    {
      "args": {
        "1": "la",
        "2": "duo",
        "t": "two"
      },
      "expansion": "duo (“two”)",
      "name": "m"
    },
    {
      "args": {
        "1": "la",
        "2": "-alis"
      },
      "expansion": "-alis",
      "name": "m"
    }
  ],
  "etymology_text": "PIE word\n *dwóh₁\nBorrowed from Latin dualis (“two”), from duo (“two”) + adjective suffix -alis.",
  "forms": [
    {
      "form": "duals",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "dual (plural duals)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "sense": "grammatical numbers",
      "word": "grammatical number"
    },
    {
      "word": "singular"
    },
    {
      "word": "trial"
    },
    {
      "word": "quadral"
    },
    {
      "word": "quintal"
    },
    {
      "word": "paucal"
    },
    {
      "word": "plural"
    },
    {
      "word": "unal"
    },
    {
      "word": "duel"
    }
  ],
  "senses": [
    {
      "glosses": [
        "Of an item that is one of a pair, the other item in the pair."
      ]
    },
    {
      "categories": [
        "English terms with usage examples",
        "en:Geometry"
      ],
      "examples": [
        {
          "text": "The octahedron is the dual of the cube.",
          "type": "example"
        }
      ],
      "glosses": [
        "Of a regular polyhedron with V vertices and F faces, the regular polyhedron having F vertices and V faces."
      ],
      "links": [
        [
          "geometry",
          "geometry"
        ],
        [
          "regular",
          "regular"
        ],
        [
          "polyhedron",
          "polyhedron"
        ]
      ],
      "raw_glosses": [
        "(geometry) Of a regular polyhedron with V vertices and F faces, the regular polyhedron having F vertices and V faces."
      ],
      "topics": [
        "geometry",
        "mathematics",
        "sciences"
      ]
    },
    {
      "categories": [
        "en:Grammar"
      ],
      "glosses": [
        "The dual number."
      ],
      "links": [
        [
          "grammar",
          "grammar"
        ],
        [
          "dual number",
          "dual number"
        ]
      ],
      "raw_glosses": [
        "(grammar) The dual number."
      ],
      "topics": [
        "grammar",
        "human-sciences",
        "linguistics",
        "sciences"
      ]
    },
    {
      "categories": [
        "en:Mathematics"
      ],
      "glosses": [
        "Of a vector in an inner product space, the linear functional corresponding to taking the inner product with that vector. The set of all duals is a vector space called the dual space."
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "vector",
          "vector"
        ],
        [
          "inner product space",
          "inner product space"
        ],
        [
          "linear",
          "linear"
        ],
        [
          "functional",
          "functional"
        ],
        [
          "inner product",
          "inner product"
        ],
        [
          "vector space",
          "vector space"
        ],
        [
          "dual space",
          "dual space"
        ]
      ],
      "raw_glosses": [
        "(mathematics) Of a vector in an inner product space, the linear functional corresponding to taking the inner product with that vector. The set of all duals is a vector space called the dual space."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈdjuː.əl/",
      "tags": [
        "UK"
      ]
    },
    {
      "ipa": "/ˈdʒuː.əl/",
      "tags": [
        "UK"
      ]
    },
    {
      "ipa": "/ˈd(j)u.əl/",
      "tags": [
        "US"
      ]
    },
    {
      "rhymes": "-ʊəl"
    },
    {
      "homophone": "duel"
    },
    {
      "homophone": "jewel (with yod coalescence)"
    },
    {
      "audio": "en-uk-dual.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/a/a0/En-uk-dual.ogg/En-uk-dual.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/a/a0/En-uk-dual.ogg",
      "tags": [
        "UK"
      ],
      "text": "Audio (UK)"
    },
    {
      "enpr": "dyo͞oʹəl, jo͞oʹəl"
    },
    {
      "enpr": "d(y)o͞o'əl"
    }
  ],
  "synonyms": [
    {
      "tags": [
        "abbreviation"
      ],
      "topics": [
        "grammar",
        "linguistics",
        "human-sciences",
        "sciences"
      ],
      "word": "du."
    }
  ],
  "translations": [
    {
      "code": "ar",
      "lang": "Arabic",
      "roman": "muṯannā",
      "sense": "grammatical number of a noun marking two of something",
      "word": "مُثَنَّى"
    },
    {
      "code": "hy",
      "lang": "Armenian",
      "roman": "erkaki",
      "sense": "grammatical number of a noun marking two of something",
      "word": "երկակի"
    },
    {
      "code": "hy",
      "lang": "Armenian",
      "roman": "erkaki tʿiv",
      "sense": "grammatical number of a noun marking two of something",
      "word": "երկակի թիվ"
    },
    {
      "code": "cs",
      "lang": "Czech",
      "sense": "grammatical number of a noun marking two of something",
      "tags": [
        "masculine"
      ],
      "word": "duál"
    },
    {
      "code": "cs",
      "lang": "Czech",
      "sense": "grammatical number of a noun marking two of something",
      "tags": [
        "neuter"
      ],
      "word": "dvojné číslo"
    },
    {
      "code": "da",
      "lang": "Danish",
      "sense": "grammatical number of a noun marking two of something",
      "tags": [
        "common-gender"
      ],
      "word": "dualis"
    },
    {
      "code": "nl",
      "lang": "Dutch",
      "sense": "grammatical number of a noun marking two of something",
      "tags": [
        "masculine"
      ],
      "word": "dualis"
    },
    {
      "code": "nl",
      "lang": "Dutch",
      "sense": "grammatical number of a noun marking two of something",
      "tags": [
        "neuter"
      ],
      "word": "tweevoud"
    },
    {
      "code": "fo",
      "lang": "Faroese",
      "sense": "grammatical number of a noun marking two of something",
      "tags": [
        "neuter"
      ],
      "word": "tvítal"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "grammatical number of a noun marking two of something",
      "word": "kaksikko"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "grammatical number of a noun marking two of something",
      "tags": [
        "masculine"
      ],
      "word": "duel"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "grammatical number of a noun marking two of something",
      "tags": [
        "masculine"
      ],
      "word": "Dual"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "grammatical number of a noun marking two of something",
      "tags": [
        "feminine"
      ],
      "word": "Zweizahl"
    },
    {
      "code": "grc",
      "lang": "Ancient Greek",
      "roman": "duïkón",
      "sense": "grammatical number of a noun marking two of something",
      "tags": [
        "neuter"
      ],
      "word": "δυϊκόν"
    },
    {
      "code": "hu",
      "lang": "Hungarian",
      "sense": "grammatical number of a noun marking two of something",
      "word": "kettős szám"
    },
    {
      "code": "hu",
      "lang": "Hungarian",
      "sense": "grammatical number of a noun marking two of something",
      "word": "duális"
    },
    {
      "code": "ga",
      "lang": "Irish",
      "sense": "grammatical number of a noun marking two of something",
      "word": "déach"
    },
    {
      "alt": "そうすうけい",
      "code": "ja",
      "lang": "Japanese",
      "roman": "sōsūkē",
      "sense": "grammatical number of a noun marking two of something",
      "word": "双数形"
    },
    {
      "code": "nv",
      "lang": "Navajo",
      "sense": "grammatical number of a noun marking two of something",
      "word": "nizhdiltʼéhígo"
    },
    {
      "code": "nb",
      "lang": "Norwegian Bokmål",
      "sense": "grammatical number of a noun marking two of something",
      "tags": [
        "masculine"
      ],
      "word": "dualis"
    },
    {
      "code": "nb",
      "lang": "Norwegian Bokmål",
      "sense": "grammatical number of a noun marking two of something",
      "tags": [
        "neuter"
      ],
      "word": "totall"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "grammatical number of a noun marking two of something",
      "tags": [
        "feminine"
      ],
      "word": "liczba podwójna"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "grammatical number of a noun marking two of something",
      "tags": [
        "masculine"
      ],
      "word": "dual"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "dvójstvennoje čisló",
      "sense": "grammatical number of a noun marking two of something",
      "tags": [
        "masculine"
      ],
      "word": "дво́йственное число́"
    },
    {
      "code": "sh",
      "lang": "Serbo-Croatian",
      "sense": "grammatical number of a noun marking two of something",
      "tags": [
        "Cyrillic",
        "feminine"
      ],
      "word": "двојѝна"
    },
    {
      "code": "sh",
      "lang": "Serbo-Croatian",
      "sense": "grammatical number of a noun marking two of something",
      "tags": [
        "Roman",
        "feminine"
      ],
      "word": "dvojìna"
    },
    {
      "code": "sl",
      "lang": "Slovene",
      "sense": "grammatical number of a noun marking two of something",
      "tags": [
        "feminine"
      ],
      "word": "dvojina"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "grammatical number of a noun marking two of something",
      "tags": [
        "common-gender"
      ],
      "word": "dualis"
    },
    {
      "code": "th",
      "lang": "Thai",
      "sense": "grammatical number of a noun marking two of something",
      "word": "ทวิพจน์"
    },
    {
      "code": "vo",
      "lang": "Volapük",
      "sense": "grammatical number of a noun marking two of something",
      "word": "telnum"
    }
  ],
  "wikipedia": [
    "Dual (grammatical number)",
    "Duality"
  ],
  "word": "dual"
}

{
  "categories": [
    "English 2-syllable words",
    "English adjectives",
    "English countable nouns",
    "English entries with incorrect language header",
    "English entries with topic categories using raw markup",
    "English lemmas",
    "English nouns",
    "English terms borrowed from Latin",
    "English terms derived from Latin",
    "English terms derived from the Proto-Indo-European word *dwóh₁",
    "English terms with IPA pronunciation",
    "English terms with audio links",
    "English terms with homophones",
    "English uncomparable adjectives",
    "English verbs",
    "Requests for review of Interlingua translations",
    "Requests for review of Latin translations",
    "Requests for review of Romanian translations",
    "Rhymes:English/ʊəl",
    "Rhymes:English/ʊəl/2 syllables",
    "en:Two"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "ine-pro",
        "2": "*dwóh₁"
      },
      "expansion": "*dwóh₁",
      "name": "l"
    },
    {
      "args": {
        "1": "en",
        "2": "dwóh₁"
      },
      "expansion": "PIE word\n *dwóh₁",
      "name": "PIE word"
    },
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "dualis",
        "t": "two"
      },
      "expansion": "Latin dualis (“two”)",
      "name": "bor"
    },
    {
      "args": {
        "1": "la",
        "2": "duo",
        "t": "two"
      },
      "expansion": "duo (“two”)",
      "name": "m"
    },
    {
      "args": {
        "1": "la",
        "2": "-alis"
      },
      "expansion": "-alis",
      "name": "m"
    }
  ],
  "etymology_text": "PIE word\n *dwóh₁\nBorrowed from Latin dualis (“two”), from duo (“two”) + adjective suffix -alis.",
  "forms": [
    {
      "form": "duals",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "dualling",
      "tags": [
        "UK",
        "participle",
        "present"
      ]
    },
    {
      "form": "dualing",
      "tags": [
        "US",
        "participle",
        "present"
      ]
    },
    {
      "form": "dualled",
      "tags": [
        "UK",
        "participle",
        "past"
      ]
    },
    {
      "form": "dualled",
      "tags": [
        "UK",
        "past"
      ]
    },
    {
      "form": "dualed",
      "tags": [
        "US",
        "participle",
        "past"
      ]
    },
    {
      "form": "dualed",
      "tags": [
        "US",
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "++",
        "past2": "dualed",
        "past2_qual": "US",
        "past_qual": "UK",
        "pres_ptc2": "dualing",
        "pres_ptc2_qual": "US",
        "pres_ptc_qual": "UK"
      },
      "expansion": "dual (third-person singular simple present duals, present participle (UK) dualling or (US) dualing, simple past and past participle (UK) dualled or (US) dualed)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English terms with quotations",
        "English transitive verbs",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "1994, Great Britain. Parliament. House of Commons, Parliamentary Debates",
          "text": "I have to declare an interest and I do so with some ambivalence because if the road is dualled it is likely to take half of my front garden.",
          "type": "quotation"
        },
        {
          "ref": "2006, David Lowe, Intermodal Freight Transport, page 163",
          "text": "The power generation and propulsion systems are dualled to accommodate component failure and maintain propulsion at reduced speed should any part of one system be lost.",
          "type": "quotation"
        },
        {
          "ref": "2021 September 22, “Network News: Nexus increases Tyne and Wear Metro train order to 46”, in RAIL, number 940, page 23",
          "text": "The investment will allow Nexus to increase service frequencies, reduce journey times, and improve reliability by dualling three sections of line between Pelaw and South Shields.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To convert from single to dual; specifically, to convert a single-carriageway road to a dual carriageway."
      ],
      "links": [
        [
          "carriageway",
          "carriageway"
        ],
        [
          "dual carriageway",
          "dual carriageway"
        ]
      ],
      "raw_glosses": [
        "(transitive) To convert from single to dual; specifically, to convert a single-carriageway road to a dual carriageway."
      ],
      "tags": [
        "transitive"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈdjuː.əl/",
      "tags": [
        "UK"
      ]
    },
    {
      "ipa": "/ˈdʒuː.əl/",
      "tags": [
        "UK"
      ]
    },
    {
      "ipa": "/ˈd(j)u.əl/",
      "tags": [
        "US"
      ]
    },
    {
      "rhymes": "-ʊəl"
    },
    {
      "homophone": "duel"
    },
    {
      "homophone": "jewel (with yod coalescence)"
    },
    {
      "audio": "en-uk-dual.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/a/a0/En-uk-dual.ogg/En-uk-dual.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/a/a0/En-uk-dual.ogg",
      "tags": [
        "UK"
      ],
      "text": "Audio (UK)"
    },
    {
      "enpr": "dyo͞oʹəl, jo͞oʹəl"
    },
    {
      "enpr": "d(y)o͞o'əl"
    }
  ],
  "synonyms": [
    {
      "tags": [
        "abbreviation"
      ],
      "topics": [
        "grammar",
        "linguistics",
        "human-sciences",
        "sciences"
      ],
      "word": "du."
    }
  ],
  "wikipedia": [
    "Dual (grammatical number)",
    "Duality"
  ],
  "word": "dual"
}

This page is a part of the kaikki.org machine-readable English dictionary. This dictionary is based on structured data extracted on 2024-04-22 from the enwiktionary dump dated 2024-04-21 using wiktextract (fc4f0c7 and c937495). The data shown on this site has been post-processed and various details (e.g., extra categories) removed, some information disambiguated, and additional data merged from other sources. See the raw data download page for the unprocessed wiktextract data.

If you use this data in academic research, please cite Tatu Ylonen: Wiktextract: Wiktionary as Machine-Readable Structured Data, Proceedings of the 13th Conference on Language Resources and Evaluation (LREC), pp. 1317-1325, Marseille, 20-25 June 2022. Linking to the relevant page(s) under https://kaikki.org would also be greatly appreciated.