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English definition of “clean”

clean

adjective     /kliːn/
NOT DIRTY A1 not dirty : clean hands clean clothes You should try to keep the kitchen a bit cleaner.Clean and tidy
NO SEX not about sex : a clean joke Morality and rules of behaviourLack of sexual activity
NO CRIME showing that you have not done anything illegal : a clean driving licence Obeying and breaking the lawObedient and compliantDisobedientBad and wrong behaviour
FAIR fair and honest : a clean election / fight Honesty, openness and sincerityVirtue and moral good
(Definition of clean adjective from the Cambridge Learner's Dictionary © Cambridge University Press)

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