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English definition of “betray”

betray

verb [T] (SHOW)    /bɪˈtreɪ/
to show feelings, thoughts, or a particular characteristic without intending to: If he is nervous on stage, he does not betray it. Although she often seems quite cold, her smiling eyes betray her true nature.Showing and demonstrating
(Definition of betray verb (SHOW) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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