Dictionary

whodunit

noun who·dun·it \hü-ˈdə-nət\

: a novel, play, or movie about a murder where you do not know who committed the murder until the end

Full Definition of WHODUNIT

:  a detective story or mystery story

Variants of WHODUNIT

who·dun·it also who·dun·nit \hü-ˈdə-nət\
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Origin of WHODUNIT

alteration of who done it?
First Known Use: 1929

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