Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “who's who”

who's who

the name and position of each person , especially in an organization Employment status and types of workReference books Who's Who a book containing information about the world's richest or most famous people : The guest list reads like a Who's Who of top American businessmen .Reference books Grammar:Questions: interrogative pronouns (what, who)We use interrogative pronouns to ask questions. They are: who, which, whom, what and whose. These are also known as wh-words. Questions using these are called wh-questions:Grammar:Interrogative pronouns: usesWe use who and whom on their own:
(Definition of who's who from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

Translations of “who's who”

Word of the Day

scramble

to mix eggs with a little milk and mix again as they are being fried

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More