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 legal challenge was filed just one day after California voters approved Proposition 50—a ballot measure that allows a new map that favors Democrats in five additional districts to be implemented through 2030.
—
Solcyré Burga, Time, 6 Nov. 2025
Couples who work from home, even just one day a week, are more likely to conceive and more likely to plan to have children in the future than those who commute to the office five days a week, the study found.
—Jessica Guynn, USA Today, 6 Nov. 2025
Now, Musk is trying to turn around the company’s fortunes by focusing on developing robots that could one day work as household servants and by deploying robotaxis that could potentially drive without people in control.
—David Ingram, NBC news, 6 Nov. 2025
Despite her and Harry's emphasis on family privacy, Meghan said in her 2022 Variety interview that she wasn't necessarily opposed to Archie or Lilibet one day following her into acting.
—Meredith Kile, PEOPLE, 6 Nov. 2025
See All Example Sentences for one day
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Solcyré Burga, Time, 6 Nov. 2025
Couples who work from home, even just one day a week, are more likely to conceive and more likely to plan to have children in the future than those who commute to the office five days a week, the study found.
—Jessica Guynn, USA Today, 6 Nov. 2025
Now, Musk is trying to turn around the company’s fortunes by focusing on developing robots that could one day work as household servants and by deploying robotaxis that could potentially drive without people in control.
—David Ingram, NBC news, 6 Nov. 2025
Despite her and Harry's emphasis on family privacy, Meghan said in her 2022 Variety interview that she wasn't necessarily opposed to Archie or Lilibet one day following her into acting.
—Meredith Kile, PEOPLE, 6 Nov. 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 9 Nov. 2025.
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