one day

adv, adj — 4 senses

one day

advalso spelled one-day
1

At some unspecified time in the future.

  • One day I shall upgrade my software, but not just yet.
  • This was a voluntary charter flight, not an ICE enforcement operation. All participants were offered the same benefits as any illegal alien who self-deports using the CBP Home App. They received travel assistance, a $1,000 stipend, and preserved the possibility they could one day return to the United States legally.2025 May 19, “Project Homecoming Charter Flight Brings Self-Deporters to Honduras, Colombia”, in Department of Homeland Security:
2

At some unspecified time in the past.

  • One day I was playing with a girl from my class.
  • 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.1913, Joseph C[rosby] Lincoln, chapter XI, in Mr. Pratt’s Patients, New York, N.Y.; London: D[aniel] Appleton and Company, →OCLC:
3

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

  • You can stay one day or two.
Synonyms
byembye, hereafter, in the future, later, later on, one day, one of these days, one of these fine days, someday, sooner or later
Antonyms
currently, long ago
Hypernyms
eventually, sometime

one-day

adj
1

lasting one day

  • one-day conference
  • one-day cricket match
1 more example
  • On the morning after the one-day strike, October 4, one of the Type 4s on crew-training, No. D169, was appropriated to head the 3 a.m. mail to Hull, as no steam locomotive had been lit up and the usual Hull Type 3 was not available; [...].1962 December, “Motive Power Miscellany: North Eastern Region”, in Modern Railways, pages 422, 425:
Related terms
one-dayer

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — authors: page histories for one day and one-day.