clean - definition in the American English Dictionary - Cambridge Dictionaries Online

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English definition of “clean”

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clean

adjective [-er/-est only]  us   /klin/

clean adjective [-er/-est only] (NOT DIRTY)

free of dirt or other unwanted parts or pieces: Make sure you wear a clean shirt. Hospital rooms have to be kept clean. Clean also means free from harmful substances, or pure: clean air/water

clean adjective [-er/-est only] (HONEST)

honest or fair; not breaking rules or laws: "Let’s make it a clean fight," said the referee. Before his conviction for fraud, he had a clean record (= he had not been involved in crime previously). slang They searched him, but he was clean (= he was not carrying anything illegal or not allowed). Clean also means morally acceptable and not giving offense: clean living a clean joke

clean adjective [-er/-est only] (COMPLETE)

complete: It’s better for both of us if we make a clean break and stop seeing each other.

clean adjective [-er/-est only] (NOT USED)

new and not used: a clean sheet of paper
clean
adverb [not gradable]  us   /klin/
infml The bullet went clean through his shoulder and out the other side.

clean

verb [I/T]  us   /klin/

clean verb [I/T] (MAKE NOT DIRTY)

to remove dirt or unwanted parts or pieces from something: [T] Saturday morning is our time to clean the house. [T] You should clean a wound immediately to avoid infection.
(Definition of clean from the Cambridge Academic Content Dictionary © Cambridge University Press)
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