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English definition of “twitch”

twitch

verb [I or T] (MOVE SLIGHTLY)    /twɪtʃ/
(to cause ) to make a sudden small movement with a part of the body , usually without intending to: He tried to suppress a smile but felt the corner of his mouth twitch. She twitched her nose like a rabbit .Disorders of muscles and the nervous systemMaking short, sudden movements
(Definition of twitch verb (MOVE SLIGHTLY) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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