expression

dunno

don't know

"Where is he?" "Dunno."

"Where is he?" "Don't know."

I dunno what to do.

I don't know what to do.

((as a response)) to mean 'I don't know' "Where are my keys?" "Dunno."

((+ question word clause)) to state lack of knowledge I dunno what time it is.

Synonyms: I don't know, I have no idea; Antonyms: I know

A contraction representing the slurred pronunciation of 'don't know'.

Imagine someone shrugging their shoulders and saying 'don't know' very quickly.

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