Idiom idiom
one day
Meaning
A phrase used to talk about a time in the future that isn't specific. It can also mean a particular day in the past when you are telling a story.
Examples
“I hope to visit Japan one day.”
“One day, she decided to leave her small town and move to the big city to start a new career.”
“He often gazed at the horizon, dreaming that one day he would finally see the world beyond the mountains he had known his entire life.”
Last updated April 22, 2026