- a narrative dealing with a murder or a series of murders and the detection of the criminal; detective story.
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
Related Wordsriddle, conundrum, subtlety, question, enigma, secrecy, problem, thriller, puzzlement, mystification, perplexity, stickler, cliffhanger, twister, occult, cryptogram, crux, difficulty, poser, why
Examples from the Web for whodunit
A traditional forensic investigation begins with a classic question: Whodunit?America's Anti-Poaching Private Eyes
September 5, 2014
Just what that is—and whodunit—remains the overarching plot that carries an electric current throughout the action.‘Broadchurch’: This British Murder Mystery Will Be Your Next Television Obsession
April 22, 2013
Word Origin and History for whodunit
"murder mystery," 1930, U.S. slang, originally a semi-facetious formation from who done it?
Online Etymology Dictionary, © 2010 Douglas Harper