Definition of who's who in English:

who's who

Line breaks: who's who
Pronunciation: /huːzˈhuː
 
/

noun

A list or directory of facts about notable people.
More example sentences
  • This is a comprehensive who's who, a list of the members of the club.
  • The company's client list reads like a who's who of the Irish corporate world.
  • The daunting list of victors reads like a who's who of golf.

Definition of who's who in:

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Word of the day dinkum
Pronunciation: ˈdɪŋkəm
adjective
(of an article or person) genuine, honest, true