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English definition of “fail”

fail

verb (STOP)    /feɪl/
B2 [I] to become weaker or stop working completely: If my eyesight fails, I'll have to stop doing this job. The brakes failed and the car crashed into a tree. After talking non-stop for two hours, her voice started to fail. The old man was failing fast (= he was dying).Becoming and making less strongNot functioning [I] If a business fails, it is unable to continue because of money problems.Starting, succeeding and failing in business
(Definition of fail verb (STOP) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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