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English definition of “unscrew”

unscrew

verb [T] uk   /ʌnˈskruː/ us  

unscrew verb [T] (LID)

to take the lid or top off something by twisting it round: I can't unscrew the top of this jar - it's really tight.Unfastening and opening

unscrew verb [T] (SCREWS)

to remove something by taking the screws out of itUnfastening and opening
(Definition of unscrew from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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