Phrase guide

one day

adv · 3 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

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1

adv

Meaning 1

At some unspecified time in the future.

Definition source: English Wiktionary via Wiktextract

Qualifier: set phrase

Examples

  • One day I shall upgrade my software, but not just yet.

Meaning relationships

Synonyms: one of these days, some day

Antonyms: none provided

2

adv

Meaning 2

At some unspecified time in the past.

Definition source: English Wiktionary via Wiktextract

Examples

  • One day I was playing with a girl from my class.

Meaning relationships

Synonyms: once

Antonyms: none provided

3

adv

Meaning 3

Used other than figuratively or idiomatically: see one, day.

Definition source: English Wiktionary via Wiktextract

Examples

  • You can stay one day or two.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

No etymology was provided for this word.

Across languages

Translations

94 source translations are retained for this English entry.

  • Arabic: مَرَّةً (marratan) — at unspecified time in the future
  • Arabic: يَوْمًا (yawman) — at unspecified time in the future
  • Belarusian: не́калі (njékali) — at unspecified time in the future
  • Belarusian: калі́-не́будзь (kalí-njébudzʹ) — at unspecified time in the future
  • Bengali: একদিন (ekdin) — at unspecified time in the future
  • Catalan: un dia — at unspecified time in the future
  • Chinese Mandarin: 某一天 (mǒu yī tiān) — at unspecified time in the future
  • Chinese Mandarin: 有一天 (yǒu yī tiān) — at unspecified time in the future
  • Chinese Mandarin: 一天 (yī tiān) — at unspecified time in the future
  • Czech: někdy — at unspecified time in the future
  • Esperanto: iam — at unspecified time in the future
  • Finnish: jonakin päivänä — at unspecified time in the future
  • Finnish: joskus — at unspecified time in the future
  • French: un jour — at unspecified time in the future
  • Georgian: როდისმე (rodisme) — at unspecified time in the future
  • German: eines Tages — at unspecified time in the future
  • East Central German: aanstoochs — at unspecified time in the future
  • Greek: κάποια μέρα (kápoia méra) — at unspecified time in the future
  • Hindi: एक दिन (ek din) — at unspecified time in the future
  • Hungarian: egy napon — at unspecified time in the future
  • Hungarian: egy szép napon — at unspecified time in the future
  • Hungarian: egyszer majd — at unspecified time in the future
  • Hungarian: majd valamikor — at unspecified time in the future
  • Italian: un giorno o l'altro — at unspecified time in the future
  • Japanese: いつか (itsuka) — at unspecified time in the future
  • Korean: 언젠가 (eonjen'ga) — at unspecified time in the future
  • Latin: olim — at unspecified time in the future
  • Macedonian: еден ден (eden den) — at unspecified time in the future
  • Malayalam: ഒരു ദിവസം (oru divasaṁ) — at unspecified time in the future
  • Malayalam: ഒരിക്കൽ (orikkal) — at unspecified time in the future
  • Maltese: jum fost l-oħrajn — at unspecified time in the future
  • Middle English: ones — at unspecified time in the future
  • Norwegian Bokmål: en gang — at unspecified time in the future
  • Norwegian Bokmål: en dag — at unspecified time in the future
  • Norwegian Nynorsk: ein gong — at unspecified time in the future
  • Norwegian Nynorsk: ein dag — at unspecified time in the future
  • Iranian Persian: یِک روز (yek ruz) — at unspecified time in the future
  • Iranian Persian: یِکْروز (yekruz) — at unspecified time in the future
  • Polish: kiedyś — at unspecified time in the future
  • Polish: pewnego dnia — at unspecified time in the future
  • Polish: któregoś dnia — at unspecified time in the future
  • Portuguese: algum dia — at unspecified time in the future
  • Romanian: într-o zi — at unspecified time in the future
  • Russian: одна́жды (odnáždy) — at unspecified time in the future
  • Russian: когда́-нибу́дь (kogdá-nibúdʹ) — at unspecified time in the future
  • Russian: когда́-то (kogdá-to) — at unspecified time in the future
  • Scottish Gaelic: latha de na làithean — at unspecified time in the future
  • Scottish Gaelic: lath'-eigin — at unspecified time in the future
  • Slovak: niekedy — at unspecified time in the future
  • Spanish: algún día — at unspecified time in the future
  • Swedish: en vacker dag — at unspecified time in the future
  • Tagalog: balang-araw — at unspecified time in the future
  • Tamil: ஒரு நால் (oru nāl) — at unspecified time in the future
  • Turkish: bir gün — at unspecified time in the future
  • Ukrainian: коли́сь (kolýsʹ) — at unspecified time in the future
  • Ukrainian: коли́-не́будь (kolý-nébudʹ) — at unspecified time in the future
  • Arabic: فِي يَوْمٍ مِنَ ٱلْأَيَّامِ (fī yawmin mina l-ʔayyāmi) — at unspecified time in the past
  • Bengali: একদিন (ekdin) — at unspecified time in the past
  • Bengali: একদা (ekoda) — at unspecified time in the past
  • Chinese Mandarin: 一天 (yī tiān) — at unspecified time in the past
  • Maore Comorian: suku — at unspecified time in the past
  • Finnish: eräänä päivänä — at unspecified time in the past
  • French: un jour — at unspecified time in the past
  • German: eines Tages — at unspecified time in the past
  • East Central German: aanstoochs — at unspecified time in the past
  • Greek: κάποτε (kápote) — at unspecified time in the past
  • Hungarian: egy napon — at unspecified time in the past
  • Hungarian: egy szép napon — at unspecified time in the past
  • Hungarian: egyszer — at unspecified time in the past
  • Italian: una volta — at unspecified time in the past
  • Japanese: ある日 (aru hi) — at unspecified time in the past
  • Korean: 어느 날 (eoneu nal) — at unspecified time in the past
  • Korean: 하루는 (haruneun) — at unspecified time in the past
  • Latin: olim — at unspecified time in the past
  • Malayalam: ഒരിക്കൽ (orikkal) — at unspecified time in the past
  • Malayalam: ഒരു ദിവസം (oru divasaṁ) — at unspecified time in the past
  • Maltese: jum fost l-oħrajn — at unspecified time in the past
  • Middle English: ones — at unspecified time in the past
  • Middle English: enes — at unspecified time in the past
  • Polish: kiedyś — at unspecified time in the past
  • Polish: pewnego dnia — at unspecified time in the past
  • Portuguese: uma vez — at unspecified time in the past
  • Portuguese: um dia — at unspecified time in the past
  • Romanian: într-o zi — at unspecified time in the past
  • Russian: одна́жды (odnáždy) — at unspecified time in the past
  • Russian: когда́-то (kogdá-to) — at unspecified time in the past
  • Russian: ка́к-то (kák-to) — at unspecified time in the past
  • Scottish Gaelic: latha a bha seo — at unspecified time in the past
  • Scottish Gaelic: latha de na làithean — at unspecified time in the past
  • Serbo-Croatian: jednoga dana — at unspecified time in the past
  • Tagalog: isang araw — at unspecified time in the past
  • Tamil: பின்னால் (piṉṉāl) — at unspecified time in the past
  • Turkish: bir gün — at unspecified time in the past
  • Welsh: undydd — at unspecified time in the past