one day

phrase

1
: at some time in the future
One day, it'll happen. You'll see.
People may one day be able to take vacations to the moon.
2
: on a day in the past
I went to her house one day and had lunch with her.
One day, we had a terrible argument.

Examples of one day in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The stakes for my own research became all too clear one day in February. — Anna Y. Q. Ho, Scientific American, 29 June 2026 Willis, who was one of the group's founders in the 1970s, died one day shy of his 75th birthday. — Melina Khan, USA Today, 1 July 2026 The yolk filling can be prepared one day in advance and stored, covered, in the refrigerator. — Erin Merhar, Southern Living, 29 June 2026 Still relatively young, however, who’s to say that Ansu can’t kick on in France and return to FC Barcelona one day. — Tom Sanderson, Forbes.com, 30 June 2026 See All Example Sentences for one day

Rhymes for one day

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Browse Nearby Words

one-crop
one day
on edge
See all Nearby Words

Cite this Entry

“One day.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/one%20day. Accessed 7 Jul. 2026.

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