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English definition of “stab sb in the back”

stab sb in the back

to do something harmful to someone who trusted you: He had been lied to and stabbed in the back by people that he thought were his friends.
See also
Disloyalty, betrayal and treason
(Definition of stab sb in the back from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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Translations of “stab sb in the back”

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