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ENGLISH · A WORD WITH POSSIBILITIES

fifth.

The ordinal form of the number five.

5 characters1 syllables approx.English language

Meaning & usage

adj/fɪfθ/UK, US, standard/fɪθ/UK, US, informal/fɪft/UK, US, dialectal
  1. The ordinal form of the number five.

    not-comparable
Where this word comes from

PIE word *pénkʷe From Middle English fifthe, fifte, fift, from Old English fīfta (“fifth”), from Proto-Germanic *fimftô (“fifth”) or *femftô, equivalent to five + -th (ordinal suffix). Cognate with Scots fift, fyft (“fifth”), North Frisian fyfde (“fifth”), West Frisian fyfde (“fifth”), Dutch vijfde (“fifth”), Low German fifte, föfte, füfte (“fifth”), German fünfte (“fifth”), Danish femte (“fifth”), Swedish femte (“fifth”), Icelandic fimmta (“fifth”).

noun/fɪfθ/UK, US, standard/fɪθ/UK, US, informal/fɪft/UK, US, dialectal
  1. The person or thing in the fifth position.

  2. The person or thing in the fifth position. The fifth gear of a transmission.

    ellipsis
  3. One of five equal parts of a whole: one-fifth.

  4. A quantity of liquor equal to one-fifth of an American gallon, or, more commonly, 750 milliliters (that is, three quarters of a liter).

    US
  5. The musical interval between one note and another five scale degrees higher (the fifth note in a scale)

  6. The fifth voice in a polyphonic melody.

Where this word comes from

PIE word *pénkʷe From Middle English fifthe, fifte, fift, from Old English fīfta (“fifth”), from Proto-Germanic *fimftô (“fifth”) or *femftô, equivalent to five + -th (ordinal suffix). Cognate with Scots fift, fyft (“fifth”), North Frisian fyfde (“fifth”), West Frisian fyfde (“fifth”), Dutch vijfde (“fifth”), Low German fifte, föfte, füfte (“fifth”), German fünfte (“fifth”), Danish femte (“fifth”), Swedish femte (“fifth”), Icelandic fimmta (“fifth”).

verb/fɪfθ/UK, US, standard/fɪθ/UK, US, informal/fɪft/UK, US, dialectal
  1. To sing in the fifth voice in a polyphonic melody.

  2. To support something fifth, after four others have already done so.

    informal · transitive
  3. To divide by five.

    nonstandard · transitive
Where this word comes from

PIE word *pénkʷe From Middle English fifthe, fifte, fift, from Old English fīfta (“fifth”), from Proto-Germanic *fimftô (“fifth”) or *femftô, equivalent to five + -th (ordinal suffix). Cognate with Scots fift, fyft (“fifth”), North Frisian fyfde (“fifth”), West Frisian fyfde (“fifth”), Dutch vijfde (“fifth”), Low German fifte, föfte, füfte (“fifth”), German fünfte (“fifth”), Danish femte (“fifth”), Swedish femte (“fifth”), Icelandic fimmta (“fifth”).

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.