American English

Definition of fail noun from the Oxford Advanced American Dictionary

 

fail

 noun
noun
NAmE//feɪl//
 
 
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Idioms
    without fail
     
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  1. 1when you tell someone to do something without fail, you are telling them that they must do it I want you here by two o'clock without fail.
  2. 2 always He e-mails every week without fail.
See the Oxford Advanced Learner's Dictionary entry: fail