Meaning & use
dunnit
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Meanings
phrasefixed phraseinformalBritish
A casual spoken form of 'doesn't it', used as a short question tag at the end of a statement.
Grammar: Comes after a positive statement, like a tag question: 'Looks nice, dunnit?' Do not use it in careful written English.
Patterns
- statement + dunnit?
- ... , dunnit?
Cold today, dunnit?
That new cafe looks smart, dunnit?
He plays well, dunnit?
phrasefixed phraseinformal
A casual spoken form of 'done it', meaning someone has completed something or is responsible for it.
Grammar: Used after a subject to mean 'has done it' or 'did it'; common in relaxed conversation and in the fixed phrase 'who dunnit'.
Patterns
- someone dunnit
- who dunnit?
- who dunnit
Don't blame me, I never dunnit.
The window's broken and nobody knows who dunnit.
She reckons her little brother dunnit.
nouncountableinformal
An informal name for a detective story or film in which the reader tries to work out who committed a crime.
Grammar: Usually written as two words, 'whodunnit', and used with 'a' or 'the'; the plural is 'whodunnits'.
Patterns
- a whodunnit
- read a whodunnit
- the classic whodunnit
We watched an old whodunnit on TV last night.
Her new novel is a clever whodunnit set on a train.
He loves curling up with a good whodunnit.
Common combinations
- who dunnit
- The whole office is asking who dunnit after the cake disappeared.
- a real whodunnit
- The missing keys turned into a real whodunnit.
- classic whodunnit
- It's a classic whodunnit with a twist at the end.
- nice day, dunnit?
- Nice day, dunnit? Let's walk to the shops.
- someone dunnit
- The gate's open, so someone dunnit.
Synonyms and how they differ
- doesn't it
- The full, standard form of the tag; use it in writing and careful speech, where 'dunnit' would sound too casual.
- done it
- The full form of the past-participle meaning; 'dunnit' only works in relaxed spoken English.
- whodunnit
- The usual spelling for the detective-story noun; choose this spelling in writing rather than 'dunnit'.
Word family
- done verb
- The past participle of 'do', which 'dunnit' shortens in casual speech.
- doesn't verb
- The full negative form of 'does', which the tag 'dunnit' stands for.
Commonly confused: dunnit or donnit? dunnit or dun it?
dunnit vs donnit
Not a real English word; learners sometimes write this by mistake, but the spoken form is spelled 'dunnit'.
dunnit vs dun it
A misspelling of the same sound; if you want the standard words, write 'done it'.
Practice
Which sentence uses 'dunnit' in the most natural way?
Choose one answer.
'Dunnit' works as a casual tag meaning 'doesn't it', so it fits after a positive statement about the weather. Option 1 needs the standard 'done'; option 2 needs 'went'; option 3 needs 'Would'.
Make it your own
Write a sentence using “dunnit”, then check it and compare it with the examples above.