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

Cao’s nomination comes one day after Army Secretary Dan Driscoll submitted his resignation after disagreements with War Secretary Pete Hegseth. — Claire Carter, The Washington Examiner, 1 Sep. 2026

Hamrick also noted that her son has his sights set on getting to the US Open one day. — Georgia Slater, PEOPLE, 1 Sep. 2026

The festival will also open one day earlier than in previous years, on Tuesday, October 6, giving audiences greater flexibility in planning their visits and screenings. — Liz Shackleton, Deadline, 1 Sep. 2026

Returns could one day be taken at Saks or Neiman’s stores, regardless of where the items were purchased. — David Moin, Footwear News, 1 Sep. 2026

Rhymes for one day

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