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
And my parents called me one day out of the blue, and said Michael’s not doing well.
—
Stephen Rodrick, Rolling Stone, 29 May 2025
Their announcements came one day after Trump threatened to withhold federal funding from California for allowing transgender youths to participate in sports.
—Houston Mitchell, Los Angeles Times, 29 May 2025
So this is a really important conversation that hopefully, one day, the government will take seriously.
—Christina Dugan Ramirez, FOXNews.com, 28 May 2025
Yet there is the fear that one day, Willamette Valley, Oregon, will no longer have a community of families that even remember the founders, let alone have a personal connection with those who started the Oregon wine dream.
—Cathrine Todd, Forbes.com, 28 May 2025
See All Example Sentences for one day
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Stephen Rodrick, Rolling Stone, 29 May 2025
Their announcements came one day after Trump threatened to withhold federal funding from California for allowing transgender youths to participate in sports.
—Houston Mitchell, Los Angeles Times, 29 May 2025
So this is a really important conversation that hopefully, one day, the government will take seriously.
—Christina Dugan Ramirez, FOXNews.com, 28 May 2025
Yet there is the fear that one day, Willamette Valley, Oregon, will no longer have a community of families that even remember the founders, let alone have a personal connection with those who started the Oregon wine dream.
—Cathrine Todd, Forbes.com, 28 May 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 5 Jun. 2025.
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