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swift

adjectiveadverbnouncommon in dialogue

  • //swɪft//

Fast; quick; rapid.

adjective

  1. 1

    Fast; quick; rapid.

    swift action

    swift response

    swift recovery

    The river’s swift current carried the boat downstream.

  2. 2

    Capable of moving at high speeds.

  3. 3

    informalQuick-thinking; bright.

    That's what limos do — advertise, and he should have known that. But, as I told you before, officer, he's not too swift.

Etymology

From Middle English swift, from Old English swift (“swift; quick”), from Proto-Germanic *swiftaz (“swift; quick”), from Proto-Indo-European *(s)weyp- (“to twist; wind around”). Cognate with Icelandic svipta (“to pull quickly”), Old English swīfan (“to revolve, sweep, wend, intervene”). More at swivel.

adverb

  1. 1

    obsoleteSwiftly.

    Light boats sail swift, though greater hulks draw deep.

    Ply swift and strong the oar.

    Let no thing escape; / Catch these for me before we all are flown, / Torn, violate, by time’s triumphal rape: / Run swift into the wheeling day; the night / Takes all of us.

noun

  1. 1

    A small plain-colored bird of the family Apodidae that resembles a swallow and is noted for its rapid flight.

  2. 2

    Any of certain lizards of the genus Sceloporus.

    As a guide to start your collection we'd suggest either iguanas, tejus, swifts, basilisks, horned toads or alligator lizards.

  3. 3

    A moth of the family Hepialidae, swift moth, ghost moth.

    Earless ghost swift moths become “invisible” to echolocating bats by forming mating clusters close (less than half a meter) above vegetation and effectively blending into the clutter of echoes that the bat receives from the leaves and stems around them.

  4. 4

    Any of various fast-flying hesperiid butterflies.

  5. 5

    A light, collapsible reel used to hold a hank of yarn in order to wind off skeins or balls.

  6. 6

    The main cylinder of a carding-machine.

  7. 7

    obsoleteThe current of a stream.

Forms

plural
swifts
comparative
swifter, more swift
superlative
swiftest, most swift
The neighbouring pagesAlphabetical order follows the rules of the language, not byte values: an accent decides only between two otherwise identical words, and Spanish files Ñ as a letter of its own.

Lexical content from Wiktionary, under CC BY-SA 4.0 · Source entry · Data version 2026-08-23

Rank among the words of the OpenSubtitles 2018 corpus — film and television subtitles, so spoken rather than written usage (CC BY-SA 3.0).