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English definition of “dirty”

dirty

adjective [-er/-est only]  /ˈdɜr·t̬i/ us  

dirty adjective [-er/-est only] (NOT CLEAN)

having esp. dirt on the surface of something: He left his dirty towels on the bathroom floor.

dirty adjective [-er/-est only] (UNFAIR)

unfair or dishonest: That was a dirty tricktelling me you were out of town when you were right here all the time! Dirty is also used to emphasize how strongly you feel that something is wrong or bad: That’s a dirty lie!

dirty

verb [T]  /ˈdɜr·t̬i/ us  

dirty verb [T] (GET DIRT ON)

to allow something to get dirt on it: Don’t sit on the ground – you’ll dirty your new suit.
(Definition of dirty from the Cambridge Academic Content Dictionary © Cambridge University Press)
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