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English definition of “break down”

break down

verb uk phrasal verb with break   /breɪk/ (broke, broken) us  

(MACHINE)

B2 If a machine or vehicle breaks down, it stops working: Our car broke down and we had to push it off the road.

(COMMUNICATION)

If a system, relationship, or discussion breaks down, it fails because there is a problem or disagreement.

(CRY)

to be unable to control your feelings and to start to cry: When we gave her the bad news, she broke down and cried.
(Definition of break down from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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