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
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.
People may join the beta for a Google app and continue getting beta updates for years without realizing it until suddenly, one day, Gboard has rounded keys. Ryan Whitwam, Ars Technica, 6 Mar. 2025 One aspect Tony said is also under review is the handling of a call from Dec. 29, one day before Mary Gingles was granted the second injunction and two days after Nathan Gingles had entered her home in violation of the no contact order, records show. Angie Dimichele, Sun Sentinel, 5 Mar. 2025 Just one day before Li’s speech, the U.S. doubled tariffs on all Chinese imports to 20% from 10%. Yue Wang, Forbes, 5 Mar. 2025 President Donald Trump told lawmakers that U.S. astronauts will one day carry the American flag to Mars and beyond during a speech before the joint session of Congress late Tuesday (March 5). Tariq Malik, Space.com, 5 Mar. 2025 See All Example Sentences for one day

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Cite this Entry

“One day.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/one%20day. Accessed 9 Mar. 2025.

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