one day
idiom
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
The agency failed to answer thousands of calls from flood survivors after allowing contracts for call-center workers to lapse one day after the disaster, according to The New York Times.
—
Zoë Schlanger, The Atlantic, 15 July 2025
Hanna’s post comes one day after Chip expressed his support for the couple in a post shared on X on Sunday, July 13.
—Natalia Senanayake, People.com, 15 July 2025
All that experience has put Berman in the position of offering advice to those who aspire to be in her position one day.
—Eileen Falkenberg-Hull, MSNBC Newsweek, 14 July 2025
Hearing the story from his mother who heard it from two strangers who came to visit the property one day, Williams said an enslaved teenager lived in the house.
—Charlotte Observer, 14 July 2025
See All Example Sentences for one day
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Zoë Schlanger, The Atlantic, 15 July 2025
Hanna’s post comes one day after Chip expressed his support for the couple in a post shared on X on Sunday, July 13.
—Natalia Senanayake, People.com, 15 July 2025
All that experience has put Berman in the position of offering advice to those who aspire to be in her position one day.
—Eileen Falkenberg-Hull, MSNBC Newsweek, 14 July 2025
Hearing the story from his mother who heard it from two strangers who came to visit the property one day, Williams said an enslaved teenager lived in the house.
—Charlotte Observer, 14 July 2025
See All Example Sentences for one day
Cite this Entry
“One day.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/one%20day. Accessed 21 Jul. 2025.
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