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English definition of “derail”


verb [I or T] (TRAIN)    /ˌdiːˈreɪl/
If a train derails or is derailed, it comes off the railway tracks .Accidents involving vehicles derailment     /-mənt/ noun [C or U] There's been a derailment just outside Crewe, and many people are feared dead .Accidents involving vehicles
(Definition of derail verb (TRAIN) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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