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English definition of “foul”

foul

adjective     /faʊl/
DIRTY very dirty , or with an unpleasant smell : the foul smell of rotting fish Dirty and untidy
BAD very bad or unpleasant : foul weather She's in a foul mood .Serious and unpleasantNot attractive to look atInformal words for bad
foul language/words very rude and offensive wordsSwearing and blasphemy
(Definition of foul adjective from the Cambridge Learner's Dictionary © Cambridge University Press)

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