Definify.com

Definition 2024

(set phrase) At some unspecified time in the future.
One day I shall upgrade my software, but not just yet.‎
At some unspecified time in the past.
One day I was playing with a girl from my class.‎
- 1913, Joseph C. Lincoln, chapter 11, in Mr. Pratt's Patients:
  One day I was out in the barn and he drifted in. I was currying the horse and he set down on the wheelbarrow and begun to ask questions.
Used in literal contexts: see one,‎ day.

at unspecified time in the future

Chinese:
Mandarin: 某一天 ‎(mǒu yī tiān), 有一天 (zh) ‎(yǒu yī tiān), 一天 (zh) ‎(yī tiān)
Finnish: jonakin päivänä, lähipäivinä, joskus (fi)
French: un jour (fr)
Georgian: როდისმე ‎(rodisme)
Italian: un giorno o l'altro
Japanese: いつか (ja) ‎(itsuka)
Korean: 언젠가 (ko) ‎(eonjenga)

Latin: olim
Macedonian:
Norwegian:

Bokmål: en gang, en dag

Nynorsk: ein gong, ein dag,
Portuguese: algum dia
Russian: одна́жды (ru) ‎(odnáždy), когда́-нибу́дь (ru) ‎(kogdá-nibúdʹ), (rare)когда́-то (ru) ‎(kogdá-to)
Scottish Gaelic: latha de na làithean, lath'-eigin
Spanish: algún día (es)
Tamil: ஒரு நால் ‎(oru nāl)
Turkish: bir gün

at unspecified time in the past

Korean: 어느 날 ‎(eoneu nal), 하루는 ‎(haruneun)
Latin: olim
Maore Comorian: suku class 9
Portuguese: uma vez
Russian: одна́жды (ru) ‎(odnáždy), когда́-то (ru) ‎(kogdá-to), ка́к-то (ru) ‎(kák-to)
Scottish Gaelic: latha a bha seo, latha de na làithean
Tamil: பின்னால் (ta) ‎(piṉṉāl)
Turkish: bir gün