one day

phrase

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

These pioneers fully expected that machines would one day surpass humans—that AGI would become ASI, or artificial superintelligence—because there’s no reason to expect that humans are the pinnacle of intelligence. — George Musser, Scientific American, 17 Sep. 2026

The project has created thousand of jobs and intends to one day shuttle travelers to and from Southern and Northern California. — Los Angeles Times, 17 Sep. 2026

Stocks posted a comeback one day after the Fed's decision to raise rates by a quarter percentage point — with the suggestion of at least one more rate increase this year — drove major market averages sharply lower Wednesday. — Justina Lee,sarah Min, CNBC, 17 Sep. 2026

The news comes one day after defensive end Zxavian Harris reportedly worked out for the Green Bay Packers on Tuesday. — Chris Vannini, New York Times, 16 Sep. 2026

Rhymes for one day

• aaa
• alleyway
• alumnae
• anime
• anyway
• arete
• attache
• axillae
• baa
• beaujolais
• bouvier
• breakaway