one day

idiom

: 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.

: 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 examples are automatically compiled from online sources to illustrate current usage. Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Most deer hunters dream about one day tagging a drop tine deer—one of those bucks with a point (or several points) dropping down from the main beam. —

Josh Honeycutt, Outdoor Life, 31 Oct. 2024 The One-Day Choir project at the Fillmore Miami Beach invites residents to sing together for one day to build community and encourage folks to vote. —

Sommer Brugal, Axios, 31 Oct. 2024 This year, city officials postponed the usual festivities by one day after severe thunderstorms were predicted to impact the area on Wednesday, Oct. 30. —

Abigail Adams, People.com, 31 Oct. 2024 Stephen says he's never met the woman in person and only talked to her that one day and hasn't talked to her since. —

Sydney Bucksbaum, EW.com, 31 Oct. 2024 See all Example Sentences for one day