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English definition of “collapse”

collapse

noun [C or U] (FAILURE)    /kəˈlæps/
B2 the sudden failure of a system, organization, business, etc.: I don't know what caused the collapse of her marriage. A poor economy has caused the collapse of thousands of small businesses. Negotiations between the two countries are on the brink/verge of collapse (= very soon going to fail). He suffered a mental/nervous collapse after ten years' teaching.FailuresAccidents and disastersHigher and lower points of achievement
(Definition of collapse noun (FAILURE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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