Standard Lemma guide

once

adv · conj · noun · 11 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • wŭn(t)s
  • /wʌn(t)s/
  • UK: /wʌn(t)s/
  • UK: /wɒn(t)s/
  • US: /wʌn(t)s/
  • US: Recorded audio is listed in the source snapshot.
  • rhymes with -ʌns
  • rhymes with -ɒns
  • rhymes with -ʌnts
  • rhymes with -ɒnts
  • CMU ARPABET: W AH1 N S Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adv

Meaning 1

One and only one time.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Qualifier: frequency

Examples

  • I have only once eaten pizza.

Meaning relationships

Synonyms: one time

Antonyms: none provided

2

adv

Meaning 2

Formerly; during some period in the past.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: temporal-location, time

Examples

  • He was once the most handsome man around.
  • I once had a motorbicycle.
  • Once I didn't drive a big car, but now I own an all-terrain 4WD.
  • Wang notes that flowers have rooted and grow in the area once covered with ice.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adv

Meaning 3

At any time; ever.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable, obsolete

Examples

  • If the facts once became known, we'd be in trouble.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adv

Meaning 4

One day, someday.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable, obsolete

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

adv

Meaning 5

Multiplied by one: indicating that a number is multiplied by one.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: mathematics, sciences

Examples

  • Once three is three.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

conj

Meaning 6

As soon as; when; after.

Definition source: English Wiktionary via Wiktextract

Examples

  • Near-synonym: immediately
  • We'll get a move on once we find the damn car keys!
  • Once you have obtained the elven bow, return to the troll bridge and trade it for the sleeping potion.
  • Once he is married, he will be able to claim the inheritance.

Meaning relationships

Synonyms: immediately

Antonyms: none provided

7

noun

Meaning 7

Obsolete form of ounce.

Definition source: English Wiktionary via Wiktextract

Usage: alt-of, obsolete

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

noun

Meaning 8

A fan of the Korean girl band Twice.

Definition source: English Wiktionary via Wiktextract

Usage: slang

Topics: lifestyle

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

adverb

Meaning 9

on one occasion

Definition source: Princeton WordNet 3.0

Examples

  • once I ran into her

Meaning relationships

Synonyms: one time, in one case

Antonyms: none provided

10

adverb

Meaning 10

at a previous time;

Definition source: Princeton WordNet 3.0

Examples

  • at one time he loved her
  • her erstwhile writing
  • she was a dancer once

Meaning relationships

Synonyms: formerly, at one time, erstwhile, erst

Antonyms: none provided

11

adverb

Meaning 11

as soon as

Definition source: Princeton WordNet 3.0

Examples

  • once we are home, we can rest

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From Middle English ones, from Old English ānes, a remodelling (after ān (“one”)) of ǣnes, itself an extension of ǣne (“once”) with the genitive suffix -es. Equivalent to one + -s. Cognate with Saterland Frisian enst, insen (“once”), West Frisian iens (“once”), Dutch eens (“once”), German Low German eens, ins (“once”), German einst (“once”). More at one (including regarding the development of the pronunciation) and -s.

Across languages

Translations

227 source translations are retained for this English entry.

  • Arabic: مَرَّةً (marratan) — one and only one time
  • Arabic: مَرَّةً وَاحِدَةً (marratan wāḥidatan) — one and only one time
  • Belarusian: раз (raz) — one and only one time
  • Belarusian: адзі́н раз (adzín raz) — one and only one time
  • Belarusian: адно́йчы (adnójčy) — one and only one time
  • Bulgarian: веднъ́ж (vednǎ́ž) — one and only one time
  • Bulgarian: еднокра́тно (ednokrátno) — one and only one time
  • Catalan: una vegada — one and only one time
  • Cebuano: makausa — one and only one time
  • Cebuano: kausa — one and only one time
  • Chinese Mandarin: 一次 (yī cì) — one and only one time
  • Chinese Mandarin: 一遍 (yī biàn) — one and only one time
  • Czech: jednou — one and only one time
  • Danish: en gang — one and only one time
  • Dutch: eens — one and only one time
  • Dutch: een keer — one and only one time
  • Dutch: eenmaal — one and only one time
  • Esperanto: unufoje — one and only one time
  • Finnish: kerran — one and only one time
  • French: une fois — one and only one time
  • Galician: unha vez — one and only one time
  • Georgian: ერთხელ (ertxel) — one and only one time
  • Georgian: ერთჯერ (ertǯer) — one and only one time
  • German: einmal — one and only one time
  • German: emaal — one and only one time
  • East Central German: aanst — one and only one time
  • Greek: μια φορά (mia forá) — one and only one time
  • Greek: άπαξ (ápax) — one and only one time
  • Ancient Greek: ἅπαξ (hápax) — one and only one time
  • Hawaiian: hoʻokahi wā — one and only one time
  • Hindi: एक बार (ek bār) — one and only one time
  • Hungarian: egyszer — one and only one time
  • Hungarian: egyetlenegyszer — one and only one time
  • Hungarian: egy alkalommal — one and only one time
  • Hungarian: egy ízben — one and only one time
  • Icelandic: einu sinni — one and only one time
  • Ido: unfoye — one and only one time
  • Irish: uair amháin — one and only one time
  • Italian: una volta — one and only one time
  • Japanese: 一度 (ichido) — one and only one time
  • Japanese: 一回 (ikkai) — one and only one time
  • Japanese: 一遍 (ippen) — one and only one time
  • Jeju: ᄒᆞᆫ 번 (hawn beon) — one and only one time
  • Korean: 한 번 (han beon) — one and only one time
  • Latin: semel — one and only one time
  • Latin: aliquando — one and only one time
  • Luxembourgish: eemol — one and only one time
  • Macedonian: еднаш (ednaš) — one and only one time
  • Malay: sekali — one and only one time
  • Maltese: darba waħda — one and only one time
  • Manchu: ᡝᠮᡤᡝᡵᡳ (emgeri) — one and only one time
  • Michif: enn fway — one and only one time
  • Michif: payaakwow — one and only one time
  • Middle English: ene — one and only one time
  • Middle English: enes — one and only one time
  • Middle English: ones — one and only one time
  • Khiamniungan Naga: tìam — one and only one time
  • Classical Nahuatl: ceppa — one and only one time
  • Norwegian Bokmål: én gang — one and only one time
  • Norwegian Nynorsk: éin gong — one and only one time
  • Old English: ǣne — one and only one time
  • Old English: ǣnes — one and only one time
  • Old Prussian: ainawārst — one and only one time
  • Parthian: 𐭏𐭉𐭅𐭐𐭓𐭂 (ʿywprg) — one and only one time
  • Pashto: یوه پلا — one and only one time
  • Persian: یکبار (yek-bâr) — one and only one time
  • Middle Persian: 𐭠𐭩𐭥𐭡𐭠𐭥 (ēwbār) — one and only one time
  • Plautdietsch: eenmol (nds) — one and only one time
  • Polish: raz — one and only one time
  • Polish: jeden raz — one and only one time
  • Portuguese: uma vez — one and only one time
  • Romanian: o dată — one and only one time
  • Russian: оди́н раз (odín raz) — one and only one time
  • Russian: одна́жды (odnáždy) — one and only one time
  • Northern Sami: oktii — one and only one time
  • Sanskrit: सकृत् (sakṛt) — one and only one time
  • Scots: ance — one and only one time
  • Serbo-Croatian: јѐдно̄м — one and only one time
  • Serbo-Croatian: једа̀нпӯт — one and only one time
  • Serbo-Croatian: jèdnōm — one and only one time
  • Serbo-Croatian: jedànpūt — one and only one time
  • Slovak: raz — one and only one time
  • Slovene: ênkrat — one and only one time
  • Spanish: una vez — one and only one time
  • Swedish: en gång — one and only one time
  • Turkish: bir defa — one and only one time
  • Turkish: bir kez — one and only one time
  • Ukrainian: раз (raz) — one and only one time
  • Ukrainian: оди́н раз (odýn raz) — one and only one time
  • Urdu: ایک دَفْعَہ (ek daf'a) — one and only one time
  • Vietnamese: một lần — one and only one time
  • Welsh: unwaith — one and only one time
  • Yiddish: איין מאָל (eyn mol) — one and only one time
  • Yoruba: ẹ̀ẹ̀kan — one and only one time
  • Yoruba: lẹ́ẹ̀kan — one and only one time
  • Zulu: kanye — one and only one time
  • Bulgarian: веднъж (vednǎž) — formerly
  • Bulgarian: някога (njakoga) — formerly
  • Chinese Mandarin: 曾經 /曾经 (céngjīng) — formerly
  • Chinese Mandarin: 以前 (yǐqián) — formerly
  • Chinese Mandarin: 有一次 (yǒu yī cì) — formerly
  • Czech: kdysi — formerly
  • Danish: engang — formerly
  • Dutch: eens — formerly
  • Dutch: ooit — formerly
  • Esperanto: iama — formerly
  • Finnish: kerran — formerly
  • Finnish: ennen — formerly
  • Finnish: ennen vanhaan — formerly
  • French: une fois — formerly
  • French: autrefois — formerly
  • French: jadis — formerly
  • French: un temps — formerly
  • Galician: outrora — formerly
  • Galician: unha vez — formerly
  • German: früher — formerly
  • Gothic: 𐍃𐌿𐌼𐌰𐌽 (suman) — formerly
  • Greek: άλλοτε (állote) — formerly
  • Greek: παλιά (paliá) — formerly
  • Ancient Greek: πρίν (prín) — formerly
  • Hebrew: פַּעַם (pá'am) — formerly
  • Hungarian: egyszer — formerly
  • Hungarian: valaha — formerly
  • Hungarian: egykor — formerly
  • Icelandic: einu sinni — formerly
  • Italian: un tempo — formerly
  • Italian: una volta — formerly
  • Japanese: 以前 (izen) — formerly
  • Japanese: かつて (katsute) — formerly
  • Japanese: 一時期 (ichijiki) — formerly
  • Japanese: 一時 (ichiji) — formerly
  • Latin: quondam — formerly
  • Malay: dahulu — formerly
  • Middle English: enes — formerly
  • Middle English: ones — formerly
  • Norwegian Bokmål: en gang — formerly
  • Norwegian Bokmål: på et tidspunkt — formerly
  • Norwegian Nynorsk: eingong — formerly
  • Occitan: autres còps — formerly
  • Occitan: un còp èra — formerly
  • Occitan: autretemps — formerly
  • Occitan: de temps passat — formerly
  • Old English: ǣne — formerly
  • Old English: ǣr — formerly
  • Old English: hwīlum — formerly
  • Polish: wcześniej — formerly
  • Portuguese: outrora — formerly
  • Romanian: odată — formerly
  • Russian: когда́-то (kogdá-to) — formerly
  • Russian: ра́ньше (ránʹše) — formerly
  • Russian: ра́нее (ráneje) — formerly
  • Sanskrit: सकृत् (sakṛt) — formerly
  • Scottish Gaelic: uaireigin — formerly
  • Serbo-Croatian: не̏када — formerly
  • Serbo-Croatian: не̏кад при̏је — formerly
  • Serbo-Croatian: nȅkada — formerly
  • Serbo-Croatian: nȅkad prȉje — formerly
  • Slovak: kedysi — formerly
  • Slovene: nekóč — formerly
  • Slovene: enkràt — formerly
  • Spanish: antiguamente — formerly
  • Spanish: anteriormente — formerly
  • Spanish: otrora — formerly
  • Spanish: antaño — formerly
  • Spanish: antes — formerly
  • Spanish: en otro tiempo — formerly
  • Swedish: tidigare — formerly
  • Swedish: förut — formerly
  • Swedish: en gång — formerly
  • Swedish: för ut — formerly
  • Ukrainian: коли́сь (kolýsʹ) — formerly
  • Unami: kwëtën — formerly
  • Vietnamese: từng — formerly
  • Vietnamese: đã từng — formerly
  • Yiddish: אַ מאָל (a mol) — formerly
  • Yiddish: פֿריִער (frier) — formerly
  • Finnish: yksi kertaa — mathematics: multiplied by one
  • Scots: ance — mathematics: multiplied by one
  • Arabic: بِمُجَرَّد أَنّ (bimujarrad ʔann) — as soon as
  • Breton: kentre ma — as soon as
  • Bulgarian: ако веднъ́ж (ako vednǎ́ž) — as soon as
  • Catalan: una vegada — as soon as
  • Catalan: un cop — as soon as
  • Chinese Mandarin: 一旦 (yīdàn) — as soon as
  • Danish: så snart (som) — as soon as
  • Danish: bare — as soon as
  • Danish: når først — as soon as
  • Dutch: zodra — as soon as
  • Dutch: eens dat — as soon as
  • Esperanto: kiam — as soon as
  • Finnish: kunhan — as soon as
  • French: aussitôt que — as soon as
  • French: dès que — as soon as
  • French: une fois que — as soon as
  • Galician: asemade — as soon as
  • Galician: asomante — as soon as
  • Galician: endebén — as soon as
  • Georgian: როგორც კი (rogorc ḳi) — as soon as
  • German: als — as soon as
  • German: sobald — as soon as
  • Greek: μόλις (mólis) — as soon as
  • Hungarian: amint — as soon as
  • Hungarian: miután — as soon as
  • Irish: ó — as soon as
  • Italian: una volta che — as soon as
  • Italian: non appena — as soon as
  • Malay: sebaik sahaja — as soon as
  • Norwegian: så snart — as soon as
  • Norwegian: med det første — as soon as
  • Norwegian Bokmål: bare — as soon as
  • Norwegian Nynorsk: berre — as soon as
  • Occitan: un còp — as soon as
  • Polish: gdy tylko — as soon as
  • Polish: jak tylko — as soon as
  • Polish: kiedy tylko — as soon as
  • Portuguese: assim que — as soon as
  • Portuguese: logo após/depois — as soon as
  • Portuguese: tão logo — as soon as
  • Romanian: odată ce — as soon as
  • Russian: как то́лько (kak tólʹko) — as soon as
  • Slovak: akonáhle — as soon as
  • Spanish: tan pronto como — as soon as
  • Spanish: una vez que — as soon as
  • Swedish: så snart som — as soon as
  • Turkish: mı — as soon as
  • Ukrainian: як ті́льки (jak tílʹky) — as soon as
  • Vietnamese: một khi — as soon as