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English definition of “error”

error

noun [C or U]     /ˈer.ər/ US  //
B2 a mistake: He admitted that he'd made an error. The letter contains a number of typing errors. Human error has been blamed for the air crash. With something as delicate as brain surgery, there is little margin for error (= you must not make mistakes).Faults and mistakes error of judgment a wrong decision: Not telling the staff before they read the news in the papers was an error of judgment.Faults and mistakes see the error of your ways to understand that you were wrong to behave in a particular way and start to behave differentlyChanging your mind
(Definition of error noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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