whodunnit
C1Informal
Definition
Meaning
A detective story, novel, film, or play centred on the question of who committed a murder.
Any mystery or puzzle where the primary intrigue is discovering the identity of the perpetrator.
Linguistics
Semantic Notes
The term is inherently genre-specific, referring to a specific type of crime fiction. It emphasizes the puzzle aspect of the narrative.
Dialectal Variation
British vs American Usage
Differences
Primarily spelling: 'whodunit' is more common in American English, 'whodunnit' is the standard British spelling, though both forms are understood in both regions.
Connotations
Identical in both varieties. Connotes classic, plot-driven mystery fiction, sometimes with a nostalgic or slightly dated feel.
Frequency
Common in both varieties, with slightly higher frequency in British English due to the strong tradition of the genre (the 'cosy mystery').
Vocabulary
Collocations
Grammar
Valency Patterns
[verb] a whodunnit (read/watch/enjoy/write)[adjective] whodunnit (classic/clever/atmospheric)Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “It's a real whodunnit.”
Usage
Context Usage
Business
Rare. Possibly used metaphorically in management to describe a problem of unclear responsibility ('We need to solve this financial whodunnit').
Academic
Used in literary criticism, media studies, or genre studies to discuss detective fiction.
Everyday
Common when discussing books, films, TV shows, or real-life puzzling situations.
Technical
Not a technical term outside of literary/media analysis.
Examples
By Part of Speech
adjective
British English
- The show has a satisfying whodunnit plot.
American English
- It was a classic whodunit story structure.
Examples
By CEFR Level
- I saw a good whodunnit on TV last night.
- Her new book is a clever whodunnit set in a country house.
- The film subverts the traditional whodunnit formula by revealing the killer at the start.
- Scholars often contrast the intellectual puzzle of the classic whodunnit with the psychological depth of the modern noir thriller.
Learning
Memory Aids
Mnemonic
The word itself is the mnemonic: it's a contraction of 'Who done it?' (non-standard 'who did it?'), which is the central question of the story.
Conceptual Metaphor
THE STORY IS A PUZZLE.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Direct translation to 'кто сделал это' is incorrect and unidiomatic. The correct equivalent is 'детектив' (detective story/novel).
Common Mistakes
- Misspelling: 'whodunit' (common AmE), 'whodunnit' (common BrE). Mispronunciation: /huːˈdʌn.ɪt/ not /ˈhuː.dʌn.ɪt/. Incorrect part of speech: It is a noun, not a verb ('They whodunnited the crime' is incorrect).
Practice
Quiz
Which of the following is the LEAST likely characteristic of a 'whodunnit'?
FAQ
Frequently Asked Questions
It is a single word, a lexicalised contraction of the phrase 'who done it?'.
Extremely rarely. By strong convention, it implies a murder mystery. For other crimes, 'mystery' or 'detective story' is more appropriate.
A whodunnit focuses on the intellectual puzzle of identifying a hidden killer from a closed set of suspects. A thriller focuses on suspense, action, and the protagonist's danger, often with the antagonist's identity known.
No, it is informal. In formal writing, terms like 'detective novel', 'mystery fiction', or 'crime narrative' are preferred.