# who's who
## English
### Alternative forms

* Who's Who

### Etymology

From Who's Who, the British publication of biographies for the upper class, first published in 1849.

### Pronunciation

* Audio (General Australian):(file)

### Noun

who's who (countable and uncountable, plural who's whos)
* (countable, sometimes capitalized) A publication containing biographies of well-known or important people.
** 1914, The Everyman Encyclopædia:
    Nearly every country has now a Who's Who, which gives a brief outline of the life and work of living men who have distinguished themselves in various ways.
** 2001, James H. Sweetland, Fundamental Reference Sources, Chicago and London: American Library Association, →ISBN, page 243:But when a living person's profession or vocation is known, it is well to consult first a biographical dictionary in that field, for it often contains more names than the more general who's whos.
* (countable) A list of notable, famous, or upper-class people.
** 1954 November 22, “Education: Something for Cleo”, in Time‎, New York, N.Y.: Time Inc., →ISSN, →OCLC, archived from the original on 2011-12-20:In the growing who's who of Negro educators, the name of Cleo W. Blackburn, 45, ranks high.
** 2002 April 6, “The 1992 campaign: Delegates; how New York voters determine who fills seats at Democratic Convention”, in The New York Times‎, New York, N.Y.: The New York Times Company, →ISSN, →OCLC:Mr. Clinton's candidates, a veritable who's who of New York Democrats, include Carol Bellamy, the former City Council president; Sandra Feldman, head of the United Federation of Teachers in New York City, and Representative Gary L. Ackerman of Queens.(Can we archive this URL?)
** 2010 February 11, “Dealer to the who’s who of Australian art”, in Sydney Morning Herald‎:With glittering names from a who's who of Australian art on her walls she would laugh: "Not just glittering names, glittering examples of their work, too."
* (uncountable) Collectively, the elite class.
* (countable) A person appearing in a Who's Who publication.
** 1942, Milwaukee Journal:Sixty-one From Wisconsin Make Debut as Who's Whos [headline]:
* (countable) A celebrity or famous person, someone likely to be in such a publication.
* (uncountable, idiomatic) The identities of specific people, understood in terms of such distinguishing characteristics as their backgrounds, prominence, achievements, jobs, etc., as a basis for comparing them and especially as a basis for ranking them within a social group.
** 1814, Maria Edgeworth, chapter XXIII, in Patronage. […], volume II, London: […] [J. M‘Creery] for J[oseph] Johnson and Co., […], →OCLC, page 348:Mrs. Falconer cannot well avoid asking you to some of her entertainments, and it will be pleasant to you to know who's who beforehand.
** 1902 August 21, Henry James, chapter XX, in The Wings of the Dove, volume (please specify |volume=I or II), New York, N.Y.: Charles Scribner’s Sons, →OCLC:"Milly, it's true," she said, to be exact, "has no natural sense of social values, doesn't in the least understand our differences or know who's who or what's what."
** 1902, W. W. Jacobs, chapter 5, in At Sunwich Port:"I'll learn 'im to insult a respectable British tradesman. I'll show him who's who."
** 1937 September 27, “Fiction: Recent Books”, in Time‎, New York, N.Y.: Time Inc., →ISSN, →OCLC, archived from the original on 2012-01-25:Readers will conjure up many a conjecture over who's who in this literary gallery.

#### Translations
### See also

* what's what
* who's who in the zoo