one day

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one day

1. (set phrase) At some unspecified time in the future.

   Synonyms: one of these days, some day; see also Thesaurus:one day

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

   • 2025 May 19, “Project Homecoming Charter Flight Brings Self-Deporters to Honduras, Colombia”, in Department of Homeland Security‎^[1]:

     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.

2. At some unspecified time in the past.

   Synonym: once

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

   • 1913, Joseph C[rosby] Lincoln, chapter XI, in Mr. Pratt’s Patients, New York, N.Y.; London: D[aniel] Appleton and Company, →OCLC:

     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.

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

   You can stay one day or two.

• Yeadon, day one, noyade