who's who

noun

often capitalized both Ws
1
: a compilation of brief biographical sketches of prominent persons in a particular field
a who's who of sports figures
2
: the leaders of a group : elite
3
: a listing or grouping of notable persons or things

Examples of who's who in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The brief filed Thursday is a who's who of the country's top economic minds. Steve Kopack, NBC news, 25 Sep. 2025 Fundraising benefits in Music City in 1976 and 1977 featured a who's who of Nashville's then-pop-breakout country industry. Marcus K. Dowling, Nashville Tennessean, 16 Sep. 2025 Where other presentations emphasize nondescript techno music and straight-size models, Antonoff and Alexsandra showcased their designs through a who's who of celebrities, sporting their new looks while carrying shelter dogs available for adoption. Anna Kaufman, USA Today, 11 Sep. 2025 Nash-Betts breaks the who's who down for us. Lauren Huff, Entertainment Weekly, 4 Sep. 2025 See All Example Sentences for who's who

Word History

First Known Use

1917, in the meaning defined at sense 1

Time Traveler
The first known use of who's who was in 1917

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Cite this Entry

“Who's who.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/who%27s%20who. Accessed 30 Sep. 2025.

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