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 question was posed on the day of the verdict and one day after.
—
James Rainey, Los Angeles Times, 3 June 2024
Trump could one day cash in and bail from the company – which could hurt shareholders like Peedin.
—Rafael Nam, NPR, 2 June 2024
See all Example Sentences for one day 
James Rainey, Los Angeles Times, 3 June 2024
Trump could one day cash in and bail from the company – which could hurt shareholders like Peedin.
—Rafael Nam, NPR, 2 June 2024
See all Example Sentences for one day
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'one day.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near one day
Cite this Entry
“One day.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/one%20day. Accessed 6 Jun. 2024.
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