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English definition of “breakdown”

breakdown

noun [C] (FAILURE)   /ˈbreɪkˌdɑʊn/
a mechanical failure, or a failure in a system or a relationship: There was evidently a breakdown in communication leading to the false report. Their car trip was a disaster – they had frequent breakdowns and never reached their destination.
(Definition of breakdown noun (FAILURE) from the Cambridge Academic Content Dictionary © Cambridge University Press)
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