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

Still, given that the video has only been online for one day, and is likely to remain a topic of national discourse for some time, the video will continue accruing viewership, and has certainly outpaced recent monologues by a large factor. —Selome Hailu, Variety, 25 Sep. 2025

In some additions to the lineup, Seattle also signed safety D'Anthony Bell off of its practice squad and added him to the 53-man roster ahead of Week 4, and the team also signed safety Jerrick Reed II to the practice squad just one day after waiving him. —Anne Erickson, MSNBC Newsweek, 25 Sep. 2025

Then, while sparring one day, Benny found himself on the receiving end of a KO. —David Fear, Rolling Stone, 25 Sep. 2025

Then one day, someone offered him a smudging. —Cleo Krejci, jsonline.com, 25 Sep. 2025

Rhymes for one day

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