who's who

1 of 2

noun

variants often Who's Who
Synonyms of who's whonext
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

who's who

2 of 2

phrase

variant of who is who

: the identity of or the noteworthy facts about each of a number of persons

Examples of who's who in a Sentence

Recent Examples on the Web
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Noun
Her client list reads like a who's who of A-listers, royals, and beauty insiders, all seeking skin that looks naturally radiant, not overly done. Pooja Shah, Forbes.com, 16 Jan. 2026 For 2026, the organization worked with its Los Angeles shelter partner, The Lovejoy Foundation, to have rescue animals attend the Astra Awards and mingle with the who's who of Hollywood. Kelli Bender, PEOPLE, 13 Jan. 2026 Trump will host a dinner for the Saudi leader on Tuesday night with a who's who of guests. Mariam Khan, ABC News, 18 Nov. 2025 With recent firings in college football, a who's who of the biggest names in coaching have appeared in speculation for head coaching vacancies. Matthew Couden, MSNBC Newsweek, 20 Oct. 2025 See All Example Sentences for who's who

Word History

First Known Use

Noun

1860, in the meaning defined at sense 1

Time Traveler
The first known use of who's who was in 1860

Browse Nearby Words

Cite this Entry

“Who's who.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/who%27s%20who. Accessed 30 Jan. 2026.

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