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English definition of “switch off”

switch off

informal phrasal verb with switch     /swɪtʃ/ verb [T, I usually + adv/prep]
to stop giving your attention to someone or something: If he gets bored , he just switches off and looks out the window .Not paying attentionTreating as unimportantNeglecting and ignoring
(Definition of switch off from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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