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who’s who

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noun [singular] British English pronunciation: who’s who
 

Related dictionary definitions

  1. a group of the most important people involved in a particular subject or activity
    a (regular) who’s who of something:

    The guest list read like a regular who’s who of the fashion industry.

    Thesaurus entry for this meaning of  who’s whoThesaurus entry for this meaning of who’s who

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Word story
From the name of the well-known book Who’s Who that gives details about the lives and achievements of important people.

This is the British English definition of who’s who. View American English definition of who’s who.

Change your default dictionary and thesaurus to American English.

 

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