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collapse

 
 
/kəˈlæps/ verb

Definition

FALL [I] When someone collapses, they fall down, usually because they are ill or weak: He collapsed and died of a heart attack.
OBJECT [I, T] to fall down or towards the inside, or to make a structure or object fall down or towards its inside: The roof collapsed under the weight of snow.
FAIL [I] to fail to work or succeed: The peace talks have collapsed.
(Definition of collapse verb from the Cambridge Learner's Dictionary © Cambridge University Press)

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