"decad" meaning in English

{
  "coordinate_terms": [
    {
      "_dis1": "0 0 0",
      "word": "duad"
    },
    {
      "_dis1": "0 0 0",
      "word": "dyad"
    },
    {
      "_dis1": "0 0 0",
      "word": "triad"
    },
    {
      "_dis1": "0 0 0",
      "word": "tetrad"
    },
    {
      "_dis1": "0 0 0",
      "word": "pentad"
    },
    {
      "_dis1": "0 0 0",
      "word": "hexad"
    },
    {
      "_dis1": "0 0 0",
      "word": "hebdomad"
    },
    {
      "_dis1": "0 0 0",
      "word": "heptad"
    },
    {
      "_dis1": "0 0 0",
      "word": "ogdoad"
    },
    {
      "_dis1": "0 0 0",
      "word": "octad"
    },
    {
      "_dis1": "0 0 0",
      "word": "ennead"
    },
    {
      "_dis1": "0 0 0",
      "word": "nonad"
    },
    {
      "_dis1": "0 0 0",
      "word": "decad"
    },
    {
      "_dis1": "0 0 0",
      "word": "decade"
    },
    {
      "_dis1": "0 0 0",
      "word": "hendecad"
    },
    {
      "_dis1": "0 0 0",
      "word": "dodecad"
    },
    {
      "_dis1": "0 0 0",
      "word": "duodecade"
    },
    {
      "_dis1": "0 0 0",
      "word": "chiliad"
    }
  ],
  "derived": [
    {
      "_dis1": "0 0 0",
      "word": "heptadecad"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "decade"
      },
      "expansion": "Doublet of decade",
      "name": "dbt"
    },
    {
      "args": {
        "1": "en",
        "2": "dec-",
        "3": "-ad"
      },
      "expansion": "By surface analysis, dec- + -ad",
      "name": "surface analysis"
    }
  ],
  "etymology_text": "Doublet of decade. By surface analysis, dec- + -ad.",
  "forms": [
    {
      "form": "decads",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "decad (plural decads)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "period of ten years",
          "word": "decade"
        }
      ],
      "categories": [
        {
          "_dis": "31 32 37",
          "kind": "other",
          "name": "English terms prefixed with dec-",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "35 35 29",
          "kind": "topical",
          "langcode": "en",
          "name": "Ten",
          "orig": "en:Ten",
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            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
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      "examples": [
        {
          "ref": "1864, Alfred Tennyson, “Aylmer’s Field”, in Enoch Arden, &c., London: Edward Moxon & Co., […], →OCLC, page 55:",
          "text": "Since Averill was a decad and a half / His elder, and their parents underground",
          "type": "quote"
        }
      ],
      "glosses": [
        "Archaic form of decade (“period of ten years”)."
      ],
      "id": "en-decad-en-noun-LSuMDuKZ",
      "links": [
        [
          "decade",
          "decade#English"
        ],
        [
          "ten",
          "ten"
        ],
        [
          "year",
          "year"
        ]
      ],
      "tags": [
        "alt-of",
        "archaic"
      ]
    },
    {
      "alt_of": [
        {
          "extra": "group of ten",
          "word": "decade"
        }
      ],
      "categories": [
        {
          "_dis": "31 32 37",
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          "name": "English terms prefixed with dec-",
          "parents": [],
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          "_dis": "35 35 29",
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          "name": "Ten",
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            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "ref": "1806, Aristotle, translated by Thomas Taylor, The Physics, or Physical Ausculation of Aristotle, page 167:",
          "text": "Plato […] extends number as far as to the decad.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Archaic form of decade (“group of ten”)."
      ],
      "id": "en-decad-en-noun-wJbxeumz",
      "links": [
        [
          "decade",
          "decade#English"
        ]
      ],
      "tags": [
        "alt-of",
        "archaic"
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    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Music",
          "orig": "en:Music",
          "parents": [
            "Art",
            "Sound",
            "Culture",
            "Energy",
            "Society",
            "Nature",
            "All topics",
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          "_dis": "21 21 57",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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        {
          "_dis": "31 32 37",
          "kind": "other",
          "name": "English terms prefixed with dec-",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "20 20 60",
          "kind": "other",
          "name": "English terms suffixed with -ad",
          "parents": [],
          "source": "w+disamb"
        },
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          "_dis": "8 8 85",
          "kind": "topical",
          "langcode": "en",
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          "orig": "en:Collectives",
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            "Miscellaneous",
            "All topics",
            "Fundamental"
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          "source": "w+disamb"
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          "kind": "topical",
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            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "coordinate_terms": [
        {
          "_dis1": "0 44 56",
          "sense": "group",
          "word": "monad"
        }
      ],
      "glosses": [
        "A group of ten notes from which the consonant triads may be constructed"
      ],
      "id": "en-decad-en-noun-Rpr29JeB",
      "links": [
        [
          "music",
          "music"
        ],
        [
          "note",
          "note"
        ],
        [
          "consonant",
          "consonant"
        ],
        [
          "triad",
          "triad"
        ]
      ],
      "raw_glosses": [
        "(music) A group of ten notes from which the consonant triads may be constructed"
      ],
      "topics": [
        "entertainment",
        "lifestyle",
        "music"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈdɛkæd/"
    }
  ],
  "word": "decad"
}

{
  "categories": [
    "English countable nouns",
    "English doublets",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English terms prefixed with dec-",
    "English terms suffixed with -ad",
    "Pages with 2 entries",
    "Pages with entries",
    "en:Collectives",
    "en:Ten"
  ],
  "coordinate_terms": [
    {
      "sense": "group",
      "word": "monad"
    },
    {
      "word": "duad"
    },
    {
      "word": "dyad"
    },
    {
      "word": "triad"
    },
    {
      "word": "tetrad"
    },
    {
      "word": "pentad"
    },
    {
      "word": "hexad"
    },
    {
      "word": "hebdomad"
    },
    {
      "word": "heptad"
    },
    {
      "word": "ogdoad"
    },
    {
      "word": "octad"
    },
    {
      "word": "ennead"
    },
    {
      "word": "nonad"
    },
    {
      "word": "decad"
    },
    {
      "word": "decade"
    },
    {
      "word": "hendecad"
    },
    {
      "word": "dodecad"
    },
    {
      "word": "duodecade"
    },
    {
      "word": "chiliad"
    }
  ],
  "derived": [
    {
      "word": "heptadecad"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "decade"
      },
      "expansion": "Doublet of decade",
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    },
    {
      "args": {
        "1": "en",
        "2": "dec-",
        "3": "-ad"
      },
      "expansion": "By surface analysis, dec- + -ad",
      "name": "surface analysis"
    }
  ],
  "etymology_text": "Doublet of decade. By surface analysis, dec- + -ad.",
  "forms": [
    {
      "form": "decads",
      "tags": [
        "plural"
      ]
    }
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  "head_templates": [
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "period of ten years",
          "word": "decade"
        }
      ],
      "categories": [
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        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1864, Alfred Tennyson, “Aylmer’s Field”, in Enoch Arden, &c., London: Edward Moxon & Co., […], →OCLC, page 55:",
          "text": "Since Averill was a decad and a half / His elder, and their parents underground",
          "type": "quote"
        }
      ],
      "glosses": [
        "Archaic form of decade (“period of ten years”)."
      ],
      "links": [
        [
          "decade",
          "decade#English"
        ],
        [
          "ten",
          "ten"
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          "year",
          "year"
        ]
      ],
      "tags": [
        "alt-of",
        "archaic"
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    {
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          "extra": "group of ten",
          "word": "decade"
        }
      ],
      "categories": [
        "English archaic forms",
        "English terms with quotations",
        "Quotation templates to be cleaned"
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      "examples": [
        {
          "ref": "1806, Aristotle, translated by Thomas Taylor, The Physics, or Physical Ausculation of Aristotle, page 167:",
          "text": "Plato […] extends number as far as to the decad.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Archaic form of decade (“group of ten”)."
      ],
      "links": [
        [
          "decade",
          "decade#English"
        ]
      ],
      "tags": [
        "alt-of",
        "archaic"
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    },
    {
      "categories": [
        "en:Music"
      ],
      "glosses": [
        "A group of ten notes from which the consonant triads may be constructed"
      ],
      "links": [
        [
          "music",
          "music"
        ],
        [
          "note",
          "note"
        ],
        [
          "consonant",
          "consonant"
        ],
        [
          "triad",
          "triad"
        ]
      ],
      "raw_glosses": [
        "(music) A group of ten notes from which the consonant triads may be constructed"
      ],
      "topics": [
        "entertainment",
        "lifestyle",
        "music"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈdɛkæd/"
    }
  ],
  "word": "decad"
}