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English definition of “betrayal”

betrayal

noun [C or U] uk   /bɪˈtreɪ.əl/ us  
an act of betraying someone or something, or the fact of someone or something being betrayed: This was the first in a series of betrayals. I felt a sense of betrayal when my friends refused to support me.Disloyalty, betrayal and treason
(Definition of betrayal from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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