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English definition of “brainwash”

brainwash

verb [T]     /ˈbreɪn.wɒʃ/ US  /-wɑːʃ/ disapproving
to make someone believe something by repeatedly telling them that it is true and preventing any other information from reaching them : The government is trying to brainwash them into think ing that war is necessary .Urging and persuadingCausing somebody to act brainwashing     /-ɪŋ/ noun [U] Many people thought the sect was guilty of brainwashing.Urging and persuadingCausing somebody to act
(Definition of brainwash verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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