whodunit
[hoo-duhn-it]
- a narrative dealing with a murder or a series of murders and the detection of the criminal; detective story.
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Also especially British, who·dun·nit.
Origin of whodunit
1925–30; jocular formation from question Who done it?, for standard English Who did it?
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
whodunnit
whodunit
- informal a novel, play, etc, concerned with a crime, usually murder
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for whodunnit
whodunit
n.
"murder mystery," 1930, U.S. slang, originally a semi-facetious formation from who done it?
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Online Etymology Dictionary, © 2010 Douglas Harper