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dud

noun [C]
 
 
/dʌd/ informal

Definition

something that has no value or that does not work: Are there any more batteries? This one's a dud. He's made eleven films in the last 20 years and not one a dud.FailuresAccidents and disastersHigher and lower points of achievement
(Definition of dud noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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