"decelerate" meaning in English

See decelerate in All languages combined, or Wiktionary

Verb

IPA: /diːˈsɛləɹeɪt/ [UK] Audio: LL-Q1860 (eng)-Vealhurl-decelerate.wav Forms: decelerates [present, singular, third-person], decelerating [participle, present], decelerated [participle, past], decelerated [past]
Etymology: Late 19th c., from de- + (ac)celerate. Etymology templates: {{pre|en|de|accelerate|alt2=(ac)celerate}} de- + (ac)celerate Head templates: {{en-verb}} decelerate (third-person singular simple present decelerates, present participle decelerating, simple past and past participle decelerated)
  1. (transitive) To reduce the velocity of something. Tags: transitive Categories (topical): Acceleration, Mechanics Translations (reduce the velocity of something): أبْطَأ (Arabic), تَبَاطَأ (tabāṭaʔ) (Arabic), намалявам скоростта (namaljavam skorostta) (Bulgarian), descelerar (Catalan), desaccelerar (Catalan), hiljentää vauhtia (Finnish), hidastaa (Finnish), ralentir (French), décélérer (French), lassít (Hungarian), lelassít (Hungarian), decelerare (Italian), retardare (Latin), desacceleréieren (Luxembourgish), whakapōturi (Maori), încetini (Romanian), замедля́ть (zamedljátʹ) [imperfective] (Russian), заме́длить (zamédlitʹ) [perfective] (Russian), desacelerar (Spanish), decelerar (Spanish), hidarasigin (Tagalog), спові́льнювати (spovílʹnjuvaty) [imperfective] (Ukrainian), спові́льнити (spovílʹnyty) [perfective] (Ukrainian)
    Sense id: en-decelerate-en-verb-ujV8TKu1 Disambiguation of Acceleration: 63 24 13 Disambiguation of Mechanics: 61 25 14 Categories (other): English terms prefixed with de- Disambiguation of English terms prefixed with de-: 26 37 37 Disambiguation of 'reduce the velocity of something': 83 17 0
  2. (transitive) To reduce the rate of advancement of something, such as a disease. Tags: transitive Synonyms (reduce the rate of advancement): retard [transitive] Translations (reduce the rate of advancement of something): намалявам скоростта (namaljavam skorostta) (Bulgarian), descelerar (Catalan), desaccelerar (Catalan), hidastaa (Finnish), retardare (Latin), încetini (Romanian)
    Sense id: en-decelerate-en-verb-TSTY0Tsa Categories (other): English entries with incorrect language header, English terms prefixed with de-, Entries with translation boxes, Terms with Arabic translations, Terms with Bulgarian translations, Terms with Catalan translations, Terms with Czech translations, Terms with Finnish translations, Terms with French translations, Terms with Hungarian translations, Terms with Italian translations, Terms with Latin translations, Terms with Luxembourgish translations, Terms with Maori translations, Terms with Romanian translations, Terms with Russian translations, Terms with Spanish translations, Terms with Tagalog translations, Terms with Ukrainian translations Disambiguation of English entries with incorrect language header: 31 50 19 Disambiguation of English terms prefixed with de-: 26 37 37 Disambiguation of Entries with translation boxes: 25 49 26 Disambiguation of Terms with Arabic translations: 18 52 30 Disambiguation of Terms with Bulgarian translations: 19 53 28 Disambiguation of Terms with Catalan translations: 17 54 29 Disambiguation of Terms with Czech translations: 20 56 24 Disambiguation of Terms with Finnish translations: 17 53 29 Disambiguation of Terms with French translations: 29 50 21 Disambiguation of Terms with Hungarian translations: 28 54 17 Disambiguation of Terms with Italian translations: 20 58 22 Disambiguation of Terms with Latin translations: 20 58 22 Disambiguation of Terms with Luxembourgish translations: 17 49 34 Disambiguation of Terms with Maori translations: 17 53 29 Disambiguation of Terms with Romanian translations: 17 53 29 Disambiguation of Terms with Russian translations: 20 58 22 Disambiguation of Terms with Spanish translations: 22 55 23 Disambiguation of Terms with Tagalog translations: 17 54 29 Disambiguation of Terms with Ukrainian translations: 17 53 29 Disambiguation of 'reduce the rate of advancement': 36 64 0 Disambiguation of 'reduce the rate of advancement of something': 35 64 0
  3. (intransitive) To go slower. Tags: intransitive Translations (to go slower): تَبَاطَأ (tabāṭaʔ) (Arabic), забавям (zabavjam) (Bulgarian), zpomalit [perfective] (Czech), hidastua (Finnish), ralentir (French), décélérer (French), lassul (Hungarian), lelassul (Hungarian), decelerare (Italian), whakapūhoi (Maori), încetini (Romanian), decelera [rare] (Romanian), замедля́ться (zamedljátʹsja) [imperfective] (Russian), заме́длиться (zamédlitʹsja) [perfective] (Russian), desacelerar (Spanish), спові́льнюватися (spovílʹnjuvatysja) [imperfective] (Ukrainian), спові́льнитися (spovílʹnytysja) [perfective] (Ukrainian)
    Sense id: en-decelerate-en-verb-qG02rFDS Categories (other): English terms prefixed with de- Disambiguation of English terms prefixed with de-: 26 37 37 Disambiguation of 'to go slower': 0 0 100
The following are not (yet) sense-disambiguated
Synonyms: slow down [intransitive, transitive], slow [intransitive, transitive] Derived forms: deceleratingly, deceleration, decelerationism, decelerative, decelerator, deceleron, undecelerated

Inflected forms

{
  "antonyms": [
    {
      "word": "accelerate"
    }
  ],
  "derived": [
    {
      "_dis1": "0 0 0",
      "word": "deceleratingly"
    },
    {
      "_dis1": "0 0 0",
      "word": "deceleration"
    },
    {
      "_dis1": "0 0 0",
      "word": "decelerationism"
    },
    {
      "_dis1": "0 0 0",
      "word": "decelerative"
    },
    {
      "_dis1": "0 0 0",
      "word": "decelerator"
    },
    {
      "_dis1": "0 0 0",
      "word": "deceleron"
    },
    {
      "_dis1": "0 0 0",
      "word": "undecelerated"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "de",
        "3": "accelerate",
        "alt2": "(ac)celerate"
      },
      "expansion": "de- + (ac)celerate",
      "name": "pre"
    }
  ],
  "etymology_text": "Late 19th c., from de- + (ac)celerate.",
  "forms": [
    {
      "form": "decelerates",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "decelerating",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "decelerated",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "decelerated",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "decelerate (third-person singular simple present decelerates, present participle decelerating, simple past and past participle decelerated)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "_dis": "26 37 37",
          "kind": "other",
          "name": "English terms prefixed with de-",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "63 24 13",
          "kind": "topical",
          "langcode": "en",
          "name": "Acceleration",
          "orig": "en:Acceleration",
          "parents": [
            "Physics",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "61 25 14",
          "kind": "topical",
          "langcode": "en",
          "name": "Mechanics",
          "orig": "en:Mechanics",
          "parents": [
            "Physics",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "ref": "1942 November and December, “Notes and News: The War and American Train Services”, in Railway Magazine, page 369:",
          "text": "In May, for example, the Illinois Central RR. introduced the long-expected streamline version of the Panama Limited, with diesel haulage, cutting the time over the 921 miles between Chicago and New Orleans by 2hr. to 18hr. each way—the fastest on record—but decelerated other trains over the same route.",
          "type": "quote"
        },
        {
          "ref": "1953 August, David R. Webb, “By Rail to Bournemouth”, in Railway Magazine, page 554:",
          "text": "The S.D.R. [Somerset & Dorset Railway] could not adhere to this schedule, and had to decelerate the service, but the original timings were restored when the M.R. and L.S.W.R. leased the S.D.R.",
          "type": "quote"
        }
      ],
      "glosses": [
        "To reduce the velocity of something."
      ],
      "id": "en-decelerate-en-verb-ujV8TKu1",
      "links": [
        [
          "velocity",
          "velocity"
        ]
      ],
      "raw_glosses": [
        "(transitive) To reduce the velocity of something."
      ],
      "tags": [
        "transitive"
      ],
      "translations": [
        {
          "_dis1": "83 17 0",
          "code": "ar",
          "lang": "Arabic",
          "sense": "reduce the velocity of something",
          "word": "أبْطَأ"
        },
        {
          "_dis1": "83 17 0",
          "code": "ar",
          "lang": "Arabic",
          "roman": "tabāṭaʔ",
          "sense": "reduce the velocity of something",
          "word": "تَبَاطَأ"
        },
        {
          "_dis1": "83 17 0",
          "code": "bg",
          "lang": "Bulgarian",
          "roman": "namaljavam skorostta",
          "sense": "reduce the velocity of something",
          "word": "намалявам скоростта"
        },
        {
          "_dis1": "83 17 0",
          "code": "ca",
          "lang": "Catalan",
          "sense": "reduce the velocity of something",
          "word": "descelerar"
        },
        {
          "_dis1": "83 17 0",
          "code": "ca",
          "lang": "Catalan",
          "sense": "reduce the velocity of something",
          "word": "desaccelerar"
        },
        {
          "_dis1": "83 17 0",
          "code": "fi",
          "lang": "Finnish",
          "sense": "reduce the velocity of something",
          "word": "hiljentää vauhtia"
        },
        {
          "_dis1": "83 17 0",
          "code": "fi",
          "lang": "Finnish",
          "sense": "reduce the velocity of something",
          "word": "hidastaa"
        },
        {
          "_dis1": "83 17 0",
          "code": "fr",
          "lang": "French",
          "sense": "reduce the velocity of something",
          "word": "ralentir"
        },
        {
          "_dis1": "83 17 0",
          "code": "fr",
          "lang": "French",
          "sense": "reduce the velocity of something",
          "word": "décélérer"
        },
        {
          "_dis1": "83 17 0",
          "code": "hu",
          "lang": "Hungarian",
          "sense": "reduce the velocity of something",
          "word": "lassít"
        },
        {
          "_dis1": "83 17 0",
          "code": "hu",
          "lang": "Hungarian",
          "sense": "reduce the velocity of something",
          "word": "lelassít"
        },
        {
          "_dis1": "83 17 0",
          "code": "it",
          "lang": "Italian",
          "sense": "reduce the velocity of something",
          "word": "decelerare"
        },
        {
          "_dis1": "83 17 0",
          "code": "la",
          "lang": "Latin",
          "sense": "reduce the velocity of something",
          "word": "retardare"
        },
        {
          "_dis1": "83 17 0",
          "code": "lb",
          "lang": "Luxembourgish",
          "sense": "reduce the velocity of something",
          "word": "desacceleréieren"
        },
        {
          "_dis1": "83 17 0",
          "code": "mi",
          "lang": "Maori",
          "sense": "reduce the velocity of something",
          "word": "whakapōturi"
        },
        {
          "_dis1": "83 17 0",
          "code": "ro",
          "lang": "Romanian",
          "sense": "reduce the velocity of something",
          "word": "încetini"
        },
        {
          "_dis1": "83 17 0",
          "code": "ru",
          "lang": "Russian",
          "roman": "zamedljátʹ",
          "sense": "reduce the velocity of something",
          "tags": [
            "imperfective"
          ],
          "word": "замедля́ть"
        },
        {
          "_dis1": "83 17 0",
          "code": "ru",
          "lang": "Russian",
          "roman": "zamédlitʹ",
          "sense": "reduce the velocity of something",
          "tags": [
            "perfective"
          ],
          "word": "заме́длить"
        },
        {
          "_dis1": "83 17 0",
          "code": "es",
          "lang": "Spanish",
          "sense": "reduce the velocity of something",
          "word": "desacelerar"
        },
        {
          "_dis1": "83 17 0",
          "code": "es",
          "lang": "Spanish",
          "sense": "reduce the velocity of something",
          "word": "decelerar"
        },
        {
          "_dis1": "83 17 0",
          "code": "tl",
          "lang": "Tagalog",
          "sense": "reduce the velocity of something",
          "word": "hidarasigin"
        },
        {
          "_dis1": "83 17 0",
          "code": "uk",
          "lang": "Ukrainian",
          "roman": "spovílʹnjuvaty",
          "sense": "reduce the velocity of something",
          "tags": [
            "imperfective"
          ],
          "word": "спові́льнювати"
        },
        {
          "_dis1": "83 17 0",
          "code": "uk",
          "lang": "Ukrainian",
          "roman": "spovílʹnyty",
          "sense": "reduce the velocity of something",
          "tags": [
            "perfective"
          ],
          "word": "спові́льнити"
        }
      ]
    },
    {
      "categories": [
        {
          "_dis": "31 50 19",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "26 37 37",
          "kind": "other",
          "name": "English terms prefixed with de-",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "25 49 26",
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "18 52 30",
          "kind": "other",
          "name": "Terms with Arabic translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "19 53 28",
          "kind": "other",
          "name": "Terms with Bulgarian translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "17 54 29",
          "kind": "other",
          "name": "Terms with Catalan translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "20 56 24",
          "kind": "other",
          "name": "Terms with Czech translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "17 53 29",
          "kind": "other",
          "name": "Terms with Finnish translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "29 50 21",
          "kind": "other",
          "name": "Terms with French translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "28 54 17",
          "kind": "other",
          "name": "Terms with Hungarian translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "20 58 22",
          "kind": "other",
          "name": "Terms with Italian translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "20 58 22",
          "kind": "other",
          "name": "Terms with Latin translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "17 49 34",
          "kind": "other",
          "name": "Terms with Luxembourgish translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "17 53 29",
          "kind": "other",
          "name": "Terms with Maori translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "17 53 29",
          "kind": "other",
          "name": "Terms with Romanian translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "20 58 22",
          "kind": "other",
          "name": "Terms with Russian translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "22 55 23",
          "kind": "other",
          "name": "Terms with Spanish translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "17 54 29",
          "kind": "other",
          "name": "Terms with Tagalog translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "17 53 29",
          "kind": "other",
          "name": "Terms with Ukrainian translations",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "To reduce the rate of advancement of something, such as a disease."
      ],
      "id": "en-decelerate-en-verb-TSTY0Tsa",
      "links": [
        [
          "rate",
          "rate"
        ],
        [
          "advancement",
          "advancement"
        ],
        [
          "disease",
          "disease"
        ]
      ],
      "raw_glosses": [
        "(transitive) To reduce the rate of advancement of something, such as a disease."
      ],
      "synonyms": [
        {
          "_dis1": "36 64 0",
          "sense": "reduce the rate of advancement",
          "tags": [
            "transitive"
          ],
          "word": "retard"
        }
      ],
      "tags": [
        "transitive"
      ],
      "translations": [
        {
          "_dis1": "35 64 0",
          "code": "bg",
          "lang": "Bulgarian",
          "roman": "namaljavam skorostta",
          "sense": "reduce the rate of advancement of something",
          "word": "намалявам скоростта"
        },
        {
          "_dis1": "35 64 0",
          "code": "ca",
          "lang": "Catalan",
          "sense": "reduce the rate of advancement of something",
          "word": "descelerar"
        },
        {
          "_dis1": "35 64 0",
          "code": "ca",
          "lang": "Catalan",
          "sense": "reduce the rate of advancement of something",
          "word": "desaccelerar"
        },
        {
          "_dis1": "35 64 0",
          "code": "fi",
          "lang": "Finnish",
          "sense": "reduce the rate of advancement of something",
          "word": "hidastaa"
        },
        {
          "_dis1": "35 64 0",
          "code": "la",
          "lang": "Latin",
          "sense": "reduce the rate of advancement of something",
          "word": "retardare"
        },
        {
          "_dis1": "35 64 0",
          "code": "ro",
          "lang": "Romanian",
          "sense": "reduce the rate of advancement of something",
          "word": "încetini"
        }
      ]
    },
    {
      "categories": [
        {
          "_dis": "26 37 37",
          "kind": "other",
          "name": "English terms prefixed with de-",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "ref": "1961 October, “The winter timetables of British Railways: Western Region”, in Trains Illustrated, page 590:",
          "text": "One of the disadvantages of increasing intermediate stops is that, as we have pointed out already, certain prestige trains have to suffer, notably the \"Cornish Riviera Express\", slowed 15min to Plymouth by stops at Taunton and Exeter; the \"Torbay Express\", decelerated 18min by stops at Reading, Westbury, Taunton and Newton Abbot; and the \"Bristolian\", which adds 14min in order to allow for a Bath stop and an increased load.",
          "type": "quote"
        }
      ],
      "glosses": [
        "To go slower."
      ],
      "id": "en-decelerate-en-verb-qG02rFDS",
      "links": [
        [
          "slower",
          "slower"
        ]
      ],
      "raw_glosses": [
        "(intransitive) To go slower."
      ],
      "tags": [
        "intransitive"
      ],
      "translations": [
        {
          "_dis1": "0 0 100",
          "code": "ar",
          "lang": "Arabic",
          "roman": "tabāṭaʔ",
          "sense": "to go slower",
          "word": "تَبَاطَأ"
        },
        {
          "_dis1": "0 0 100",
          "code": "bg",
          "lang": "Bulgarian",
          "roman": "zabavjam",
          "sense": "to go slower",
          "word": "забавям"
        },
        {
          "_dis1": "0 0 100",
          "code": "cs",
          "lang": "Czech",
          "sense": "to go slower",
          "tags": [
            "perfective"
          ],
          "word": "zpomalit"
        },
        {
          "_dis1": "0 0 100",
          "code": "fi",
          "lang": "Finnish",
          "sense": "to go slower",
          "word": "hidastua"
        },
        {
          "_dis1": "0 0 100",
          "code": "fr",
          "lang": "French",
          "sense": "to go slower",
          "word": "ralentir"
        },
        {
          "_dis1": "0 0 100",
          "code": "fr",
          "lang": "French",
          "sense": "to go slower",
          "word": "décélérer"
        },
        {
          "_dis1": "0 0 100",
          "code": "hu",
          "lang": "Hungarian",
          "sense": "to go slower",
          "word": "lassul"
        },
        {
          "_dis1": "0 0 100",
          "code": "hu",
          "lang": "Hungarian",
          "sense": "to go slower",
          "word": "lelassul"
        },
        {
          "_dis1": "0 0 100",
          "code": "it",
          "lang": "Italian",
          "sense": "to go slower",
          "word": "decelerare"
        },
        {
          "_dis1": "0 0 100",
          "code": "mi",
          "lang": "Maori",
          "sense": "to go slower",
          "word": "whakapūhoi"
        },
        {
          "_dis1": "0 0 100",
          "code": "ro",
          "lang": "Romanian",
          "sense": "to go slower",
          "word": "încetini"
        },
        {
          "_dis1": "0 0 100",
          "code": "ro",
          "lang": "Romanian",
          "sense": "to go slower",
          "tags": [
            "rare"
          ],
          "word": "decelera"
        },
        {
          "_dis1": "0 0 100",
          "code": "ru",
          "lang": "Russian",
          "roman": "zamedljátʹsja",
          "sense": "to go slower",
          "tags": [
            "imperfective"
          ],
          "word": "замедля́ться"
        },
        {
          "_dis1": "0 0 100",
          "code": "ru",
          "lang": "Russian",
          "roman": "zamédlitʹsja",
          "sense": "to go slower",
          "tags": [
            "perfective"
          ],
          "word": "заме́длиться"
        },
        {
          "_dis1": "0 0 100",
          "code": "es",
          "lang": "Spanish",
          "sense": "to go slower",
          "word": "desacelerar"
        },
        {
          "_dis1": "0 0 100",
          "code": "uk",
          "lang": "Ukrainian",
          "roman": "spovílʹnjuvatysja",
          "sense": "to go slower",
          "tags": [
            "imperfective"
          ],
          "word": "спові́льнюватися"
        },
        {
          "_dis1": "0 0 100",
          "code": "uk",
          "lang": "Ukrainian",
          "roman": "spovílʹnytysja",
          "sense": "to go slower",
          "tags": [
            "perfective"
          ],
          "word": "спові́льнитися"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/diːˈsɛləɹeɪt/",
      "tags": [
        "UK"
      ]
    },
    {
      "audio": "LL-Q1860 (eng)-Vealhurl-decelerate.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/e/ea/LL-Q1860_%28eng%29-Vealhurl-decelerate.wav/LL-Q1860_%28eng%29-Vealhurl-decelerate.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/e/ea/LL-Q1860_%28eng%29-Vealhurl-decelerate.wav/LL-Q1860_%28eng%29-Vealhurl-decelerate.wav.ogg"
    }
  ],
  "synonyms": [
    {
      "_dis1": "0 0 0",
      "tags": [
        "intransitive",
        "transitive"
      ],
      "word": "slow down"
    },
    {
      "_dis1": "0 0 0",
      "tags": [
        "intransitive",
        "transitive"
      ],
      "word": "slow"
    }
  ],
  "word": "decelerate"
}
{
  "antonyms": [
    {
      "word": "accelerate"
    }
  ],
  "categories": [
    "English entries with incorrect language header",
    "English ergative verbs",
    "English lemmas",
    "English terms prefixed with de-",
    "English verbs",
    "Entries with translation boxes",
    "Pages with 3 entries",
    "Pages with entries",
    "Terms with Arabic translations",
    "Terms with Bulgarian translations",
    "Terms with Catalan translations",
    "Terms with Czech translations",
    "Terms with Finnish translations",
    "Terms with French translations",
    "Terms with Hungarian translations",
    "Terms with Italian translations",
    "Terms with Latin translations",
    "Terms with Luxembourgish translations",
    "Terms with Maori translations",
    "Terms with Romanian translations",
    "Terms with Russian translations",
    "Terms with Spanish translations",
    "Terms with Tagalog translations",
    "Terms with Ukrainian translations",
    "en:Acceleration",
    "en:Mechanics"
  ],
  "derived": [
    {
      "word": "deceleratingly"
    },
    {
      "word": "deceleration"
    },
    {
      "word": "decelerationism"
    },
    {
      "word": "decelerative"
    },
    {
      "word": "decelerator"
    },
    {
      "word": "deceleron"
    },
    {
      "word": "undecelerated"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "de",
        "3": "accelerate",
        "alt2": "(ac)celerate"
      },
      "expansion": "de- + (ac)celerate",
      "name": "pre"
    }
  ],
  "etymology_text": "Late 19th c., from de- + (ac)celerate.",
  "forms": [
    {
      "form": "decelerates",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "decelerating",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "decelerated",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "decelerated",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "decelerate (third-person singular simple present decelerates, present participle decelerating, simple past and past participle decelerated)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English terms with quotations",
        "English transitive verbs"
      ],
      "examples": [
        {
          "ref": "1942 November and December, “Notes and News: The War and American Train Services”, in Railway Magazine, page 369:",
          "text": "In May, for example, the Illinois Central RR. introduced the long-expected streamline version of the Panama Limited, with diesel haulage, cutting the time over the 921 miles between Chicago and New Orleans by 2hr. to 18hr. each way—the fastest on record—but decelerated other trains over the same route.",
          "type": "quote"
        },
        {
          "ref": "1953 August, David R. Webb, “By Rail to Bournemouth”, in Railway Magazine, page 554:",
          "text": "The S.D.R. [Somerset & Dorset Railway] could not adhere to this schedule, and had to decelerate the service, but the original timings were restored when the M.R. and L.S.W.R. leased the S.D.R.",
          "type": "quote"
        }
      ],
      "glosses": [
        "To reduce the velocity of something."
      ],
      "links": [
        [
          "velocity",
          "velocity"
        ]
      ],
      "raw_glosses": [
        "(transitive) To reduce the velocity of something."
      ],
      "tags": [
        "transitive"
      ]
    },
    {
      "categories": [
        "English transitive verbs"
      ],
      "glosses": [
        "To reduce the rate of advancement of something, such as a disease."
      ],
      "links": [
        [
          "rate",
          "rate"
        ],
        [
          "advancement",
          "advancement"
        ],
        [
          "disease",
          "disease"
        ]
      ],
      "raw_glosses": [
        "(transitive) To reduce the rate of advancement of something, such as a disease."
      ],
      "tags": [
        "transitive"
      ]
    },
    {
      "categories": [
        "English intransitive verbs",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1961 October, “The winter timetables of British Railways: Western Region”, in Trains Illustrated, page 590:",
          "text": "One of the disadvantages of increasing intermediate stops is that, as we have pointed out already, certain prestige trains have to suffer, notably the \"Cornish Riviera Express\", slowed 15min to Plymouth by stops at Taunton and Exeter; the \"Torbay Express\", decelerated 18min by stops at Reading, Westbury, Taunton and Newton Abbot; and the \"Bristolian\", which adds 14min in order to allow for a Bath stop and an increased load.",
          "type": "quote"
        }
      ],
      "glosses": [
        "To go slower."
      ],
      "links": [
        [
          "slower",
          "slower"
        ]
      ],
      "raw_glosses": [
        "(intransitive) To go slower."
      ],
      "tags": [
        "intransitive"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/diːˈsɛləɹeɪt/",
      "tags": [
        "UK"
      ]
    },
    {
      "audio": "LL-Q1860 (eng)-Vealhurl-decelerate.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/e/ea/LL-Q1860_%28eng%29-Vealhurl-decelerate.wav/LL-Q1860_%28eng%29-Vealhurl-decelerate.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/e/ea/LL-Q1860_%28eng%29-Vealhurl-decelerate.wav/LL-Q1860_%28eng%29-Vealhurl-decelerate.wav.ogg"
    }
  ],
  "synonyms": [
    {
      "tags": [
        "intransitive",
        "transitive"
      ],
      "word": "slow down"
    },
    {
      "tags": [
        "intransitive",
        "transitive"
      ],
      "word": "slow"
    },
    {
      "sense": "reduce the rate of advancement",
      "tags": [
        "transitive"
      ],
      "word": "retard"
    }
  ],
  "translations": [
    {
      "code": "ar",
      "lang": "Arabic",
      "sense": "reduce the velocity of something",
      "word": "أبْطَأ"
    },
    {
      "code": "ar",
      "lang": "Arabic",
      "roman": "tabāṭaʔ",
      "sense": "reduce the velocity of something",
      "word": "تَبَاطَأ"
    },
    {
      "code": "bg",
      "lang": "Bulgarian",
      "roman": "namaljavam skorostta",
      "sense": "reduce the velocity of something",
      "word": "намалявам скоростта"
    },
    {
      "code": "ca",
      "lang": "Catalan",
      "sense": "reduce the velocity of something",
      "word": "descelerar"
    },
    {
      "code": "ca",
      "lang": "Catalan",
      "sense": "reduce the velocity of something",
      "word": "desaccelerar"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "reduce the velocity of something",
      "word": "hiljentää vauhtia"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "reduce the velocity of something",
      "word": "hidastaa"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "reduce the velocity of something",
      "word": "ralentir"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "reduce the velocity of something",
      "word": "décélérer"
    },
    {
      "code": "hu",
      "lang": "Hungarian",
      "sense": "reduce the velocity of something",
      "word": "lassít"
    },
    {
      "code": "hu",
      "lang": "Hungarian",
      "sense": "reduce the velocity of something",
      "word": "lelassít"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "reduce the velocity of something",
      "word": "decelerare"
    },
    {
      "code": "la",
      "lang": "Latin",
      "sense": "reduce the velocity of something",
      "word": "retardare"
    },
    {
      "code": "lb",
      "lang": "Luxembourgish",
      "sense": "reduce the velocity of something",
      "word": "desacceleréieren"
    },
    {
      "code": "mi",
      "lang": "Maori",
      "sense": "reduce the velocity of something",
      "word": "whakapōturi"
    },
    {
      "code": "ro",
      "lang": "Romanian",
      "sense": "reduce the velocity of something",
      "word": "încetini"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "zamedljátʹ",
      "sense": "reduce the velocity of something",
      "tags": [
        "imperfective"
      ],
      "word": "замедля́ть"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "zamédlitʹ",
      "sense": "reduce the velocity of something",
      "tags": [
        "perfective"
      ],
      "word": "заме́длить"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "reduce the velocity of something",
      "word": "desacelerar"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "reduce the velocity of something",
      "word": "decelerar"
    },
    {
      "code": "tl",
      "lang": "Tagalog",
      "sense": "reduce the velocity of something",
      "word": "hidarasigin"
    },
    {
      "code": "uk",
      "lang": "Ukrainian",
      "roman": "spovílʹnjuvaty",
      "sense": "reduce the velocity of something",
      "tags": [
        "imperfective"
      ],
      "word": "спові́льнювати"
    },
    {
      "code": "uk",
      "lang": "Ukrainian",
      "roman": "spovílʹnyty",
      "sense": "reduce the velocity of something",
      "tags": [
        "perfective"
      ],
      "word": "спові́льнити"
    },
    {
      "code": "bg",
      "lang": "Bulgarian",
      "roman": "namaljavam skorostta",
      "sense": "reduce the rate of advancement of something",
      "word": "намалявам скоростта"
    },
    {
      "code": "ca",
      "lang": "Catalan",
      "sense": "reduce the rate of advancement of something",
      "word": "descelerar"
    },
    {
      "code": "ca",
      "lang": "Catalan",
      "sense": "reduce the rate of advancement of something",
      "word": "desaccelerar"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "reduce the rate of advancement of something",
      "word": "hidastaa"
    },
    {
      "code": "la",
      "lang": "Latin",
      "sense": "reduce the rate of advancement of something",
      "word": "retardare"
    },
    {
      "code": "ro",
      "lang": "Romanian",
      "sense": "reduce the rate of advancement of something",
      "word": "încetini"
    },
    {
      "code": "ar",
      "lang": "Arabic",
      "roman": "tabāṭaʔ",
      "sense": "to go slower",
      "word": "تَبَاطَأ"
    },
    {
      "code": "bg",
      "lang": "Bulgarian",
      "roman": "zabavjam",
      "sense": "to go slower",
      "word": "забавям"
    },
    {
      "code": "cs",
      "lang": "Czech",
      "sense": "to go slower",
      "tags": [
        "perfective"
      ],
      "word": "zpomalit"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "to go slower",
      "word": "hidastua"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "to go slower",
      "word": "ralentir"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "to go slower",
      "word": "décélérer"
    },
    {
      "code": "hu",
      "lang": "Hungarian",
      "sense": "to go slower",
      "word": "lassul"
    },
    {
      "code": "hu",
      "lang": "Hungarian",
      "sense": "to go slower",
      "word": "lelassul"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "to go slower",
      "word": "decelerare"
    },
    {
      "code": "mi",
      "lang": "Maori",
      "sense": "to go slower",
      "word": "whakapūhoi"
    },
    {
      "code": "ro",
      "lang": "Romanian",
      "sense": "to go slower",
      "word": "încetini"
    },
    {
      "code": "ro",
      "lang": "Romanian",
      "sense": "to go slower",
      "tags": [
        "rare"
      ],
      "word": "decelera"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "zamedljátʹsja",
      "sense": "to go slower",
      "tags": [
        "imperfective"
      ],
      "word": "замедля́ться"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "zamédlitʹsja",
      "sense": "to go slower",
      "tags": [
        "perfective"
      ],
      "word": "заме́длиться"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "to go slower",
      "word": "desacelerar"
    },
    {
      "code": "uk",
      "lang": "Ukrainian",
      "roman": "spovílʹnjuvatysja",
      "sense": "to go slower",
      "tags": [
        "imperfective"
      ],
      "word": "спові́льнюватися"
    },
    {
      "code": "uk",
      "lang": "Ukrainian",
      "roman": "spovílʹnytysja",
      "sense": "to go slower",
      "tags": [
        "perfective"
      ],
      "word": "спові́льнитися"
    }
  ],
  "word": "decelerate"
}

Download raw JSONL data for decelerate meaning in English (9.7kB)


This page is a part of the kaikki.org machine-readable English dictionary. This dictionary is based on structured data extracted on 2025-03-09 from the enwiktionary dump dated 2025-03-02 using wiktextract (32c88e6 and 633533e). 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.