I once wanted to be an astrophysicist.
Source: tatoeba (1316)
Once
//wʌn(t)s//
Synonyms for "once" (112 found)
Ranked by relevance and common usage.
Closest matches (23)
at one timeone timealonealreadyancientanytimeanywayanywiseapartas soon asat a strokeat allat any timeat intervalsat onceat timesat whatever timebeforeby itselfbygone
Show 1 more word
Conjunction(1 words)
Adverb(1 words)
Strong matches (33)
Adverb(4 words)
Adverb(1 words)
Conjunction(1 words)
Related words (56)
Related word relations
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
Antonyms
5 entriesSynonyms
3 entriesRelated terms
27 entriesShowing 16 of 27 words.
capable of
1 entriescoordinate
7 entriesderived
15 entriesdistinct from
2 entriesetymologically related_to
1 entrieshas a
1 entrieshas context
3 entriesis a
2 entriesrelated to
45 entriesShowing 16 of 45 words.
similar
2 entriesTranslations
227 translations across 74 languages.
Ancient Greek
2 entries- πρίν adv (formerly)
- ἅπαξ adv (one and only one time)
Arabic
3 entries- مَرَّةً adv (one and only one time)
- مَرَّةً وَاحِدَةً adv (one and only one time)
- بِمُجَرَّد أَنّ conj (as soon as)
Belarusian
3 entries- адзі́н раз adv (one and only one time)
- адно́йчы adv (one and only one time)
- раз adv (one and only one time)
Breton
1 entries- kentre ma conj (as soon as)
Bulgarian
4 entries- веднъ́ж adv (one and only one time)
- веднъж adv (formerly)
- еднокра́тно adv (one and only one time)
- някога adv (formerly)
Catalan
3 entries- una vegada adv (one and only one time)
- un cop conj (as soon as)
- una vegada conj (as soon as)
Cebuano
2 entries- kausa adv (one and only one time)
- makausa adv (one and only one time)
Chinese Mandarin
4 entries- 一次 adv (one and only one time)
- 一遍 adv (one and only one time)
- 以前 adv (formerly)
- 曾經 /曾经 adv (formerly)
Classical Nahuatl
1 entries- ceppa adv (one and only one time)
Czech
2 entries- jednou adv (one and only one time)
- kdysi adv (formerly)
Danish
4 entries- en gang adv (one and only one time)
- engang adv (formerly)
- bare conj (as soon as)
- når først conj (as soon as)
Dutch
4 entries- een keer adv (one and only one time)
- eenmaal adv (one and only one time)
- eens adv (one and only one time)
- eens adv (formerly)
East Central German
1 entries- aanst adv (one and only one time)
Esperanto
3 entries- iama adv (formerly)
- unufoje adv (one and only one time)
- kiam conj (as soon as)
Finnish
4 entries- ennen adv (formerly)
- ennen vanhaan adv (formerly)
- kerran adv (one and only one time)
- kerran adv (formerly)
French
4 entries- autrefois adv (formerly)
- jadis adv (formerly)
- un temps adv (formerly)
- une fois adv (one and only one time)
Galician
4 entries- outrora adv (formerly)
- unha vez adv (one and only one time)
- unha vez adv (formerly)
- asemade conj (as soon as)
Georgian
3 entries- ერთხელ adv (one and only one time)
- ერთჯერ adv (one and only one time)
- როგორც კი conj (as soon as)
German
4 entries- einmal adv (one and only one time)
- emaal adv (one and only one time)
- früher adv (formerly)
- als conj (as soon as)
Gothic
1 entries- 𐍃𐌿𐌼𐌰𐌽 adv (formerly)
Greek
4 entries- άλλοτε adv (formerly)
- άπαξ adv (one and only one time)
- μια φορά adv (one and only one time)
- παλιά adv (formerly)
Hawaiian
1 entries- hoʻokahi wā adv (one and only one time)
Hebrew
1 entries- פַּעַם adv (formerly)
Hindi
1 entries- एक बार adv (one and only one time)
Hungarian
4 entries- egy alkalommal adv (one and only one time)
- egy ízben adv (one and only one time)
- egyetlenegyszer adv (one and only one time)
- egykor adv (formerly)
Icelandic
2 entries- einu sinni adv (one and only one time)
- einu sinni adv (formerly)
Ido
1 entries- unfoye adv (one and only one time)
Irish
2 entries- uair amháin adv (one and only one time)
- ó conj (as soon as)
Italian
4 entries- un tempo adv (formerly)
- una volta adv (one and only one time)
- una volta adv (formerly)
- non appena conj (as soon as)
Japanese
4 entries- かつて adv (formerly)
- 一回 adv (one and only one time)
- 一度 adv (one and only one time)
- 一時 adv (formerly)
Jeju
1 entries- ᄒᆞᆫ 번 adv (one and only one time)
Khiamniungan Naga
1 entries- tìam adv (one and only one time)
Korean
1 entries- 한 번 adv (one and only one time)
Latin
3 entries- aliquando adv (one and only one time)
- quondam adv (formerly)
- semel adv (one and only one time)
Luxembourgish
1 entries- eemol adv (one and only one time)
Macedonian
1 entries- еднаш adv (one and only one time)
Malay
3 entries- dahulu adv (formerly)
- sekali adv (one and only one time)
- sebaik sahaja conj (as soon as)
Maltese
1 entries- darba waħda adv (one and only one time)
Manchu
1 entries- ᡝᠮᡤᡝᡵᡳ adv (one and only one time)
Michif
2 entries- enn fway adv (one and only one time)
- payaakwow adv (one and only one time)
Middle English
4 entries- ene adv (one and only one time)
- enes adv (one and only one time)
- enes adv (formerly)
- ones adv (one and only one time)
Middle Persian
1 entries- 𐭠𐭩𐭥𐭡𐭠𐭥 adv (one and only one time)
Northern Sami
1 entries- oktii adv (one and only one time)
Norwegian
2 entries- med det første conj (as soon as)
- så snart conj (as soon as)
Norwegian Bokmål
4 entries- en gang adv (formerly)
- på et tidspunkt adv (formerly)
- én gang adv (one and only one time)
- bare conj (as soon as)
Norwegian Nynorsk
3 entries- eingong adv (formerly)
- éin gong adv (one and only one time)
- berre conj (as soon as)
Occitan
4 entries- autres còps adv (formerly)
- autretemps adv (formerly)
- de temps passat adv (formerly)
- un còp èra adv (formerly)
Old English
4 entries- hwīlum adv (formerly)
- ǣne adv (one and only one time)
- ǣne adv (formerly)
- ǣnes adv (one and only one time)
Old Prussian
1 entries- ainawārst adv (one and only one time)
Parthian
1 entries- 𐭏𐭉𐭅𐭐𐭓𐭂 adv (one and only one time)
Pashto
1 entries- یوه پلا adv (one and only one time)
Persian
1 entries- یکبار adv (one and only one time)
Plautdietsch
1 entries- eenmol (nds) adv (one and only one time)
Polish
4 entries- jeden raz adv (one and only one time)
- raz adv (one and only one time)
- wcześniej adv (formerly)
- gdy tylko conj (as soon as)
Portuguese
4 entries- outrora adv (formerly)
- uma vez adv (one and only one time)
- assim que conj (as soon as)
- logo após/depois conj (as soon as)
Romanian
3 entries- o dată adv (one and only one time)
- odată adv (formerly)
- odată ce conj (as soon as)
Russian
4 entries- когда́-то adv (formerly)
- оди́н раз adv (one and only one time)
- одна́жды adv (one and only one time)
- ра́нее adv (formerly)
Sanskrit
2 entries- सकृत् adv (one and only one time)
- सकृत् adv (formerly)
Scots
2 entries- ance adv (one and only one time)
- ance adv (mathematics: multiplied by one)
Scottish Gaelic
1 entries- uaireigin adv (formerly)
Serbo-Croatian
4 entries- jedànpūt adv (one and only one time)
- jèdnōm adv (one and only one time)
- nȅkad prȉje adv (formerly)
- nȅkada adv (formerly)
Slovak
3 entries- kedysi adv (formerly)
- raz adv (one and only one time)
- akonáhle conj (as soon as)
Slovene
3 entries- enkràt adv (formerly)
- nekóč adv (formerly)
- ênkrat adv (one and only one time)
Spanish
4 entries- antaño adv (formerly)
- anteriormente adv (formerly)
- antes adv (formerly)
- antiguamente adv (formerly)
Swedish
4 entries- en gång adv (one and only one time)
- en gång adv (formerly)
- för ut adv (formerly)
- förut adv (formerly)
Turkish
3 entries- bir defa adv (one and only one time)
- bir kez adv (one and only one time)
- mı conj (as soon as)
Ukrainian
4 entries- коли́сь adv (formerly)
- оди́н раз adv (one and only one time)
- раз adv (one and only one time)
- як ті́льки conj (as soon as)
Unami
1 entries- kwëtën adv (formerly)
Urdu
1 entries- ایک دَفْعَہ adv (one and only one time)
Vietnamese
4 entries- một lần adv (one and only one time)
- từng adv (formerly)
- đã từng adv (formerly)
- một khi conj (as soon as)
Welsh
1 entries- unwaith adv (one and only one time)
Yiddish
3 entries- אַ מאָל adv (formerly)
- איין מאָל adv (one and only one time)
- פֿריִער adv (formerly)
Yoruba
2 entries- lẹ́ẹ̀kan adv (one and only one time)
- ẹ̀ẹ̀kan adv (one and only one time)
Zulu
1 entries- kanye adv (one and only one time)
Sample sentences
27 total sentences available.
Even now, many years after the Cold War, there is still much rancor between the Russians and the Germans, especially in areas once occupied by the Soviet Union.
Source: tatoeba (1968)
For once in my life I'm doing a good deed... And it is useless.
Source: tatoeba (3257)
You must apologize to her, and that at once.
Source: tatoeba (12000)
Showing 4 of 27 available sentences.
Keep exploring
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.