once in a lifetime
idiom
: very rare or very rarely
a once-in-a-lifetime opportunity
This sort of opportunity comes along once in a lifetime.
Examples of once in a lifetime in a Sentence
Recent Examples on the Web
But then, once in a lifetime The longed for tidal wave
Of justice can rise up,
And hope and history rhyme.
—
Tim Ryan, MSNBC Newsweek, 4 July 2025
But unlike other day-long helicopter rides, this airborne trip made the vacation truly once in a lifetime without cutting into time for on-the-ground exploration.
—Sabrina Weiss, People.com, 24 June 2025
Lightning in a Bottle is truly a once in a lifetime experience.
—Steve Baltin, Forbes.com, 9 June 2025
What some would call once in a lifetime, what some would consider a master class, was, for Scottie Scheffler, Thursday at the Travelers.
—Dom Amore, Hartford Courant, 19 June 2025
See All Example Sentences for once in a lifetime
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Tim Ryan, MSNBC Newsweek, 4 July 2025
But unlike other day-long helicopter rides, this airborne trip made the vacation truly once in a lifetime without cutting into time for on-the-ground exploration.
—Sabrina Weiss, People.com, 24 June 2025
Lightning in a Bottle is truly a once in a lifetime experience.
—Steve Baltin, Forbes.com, 9 June 2025
What some would call once in a lifetime, what some would consider a master class, was, for Scottie Scheffler, Thursday at the Travelers.
—Dom Amore, Hartford Courant, 19 June 2025
See All Example Sentences for once in a lifetime
Cite this Entry
“Once in a lifetime.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/once%20in%20a%20lifetime. Accessed 29 Jul. 2025.
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