Definition of alibi noun from the Oxford Advanced American Dictionary

     

    alibi

     noun
    noun
    NAmE//ˈæləˌbaɪ//
     
     
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  1. 1evidence that proves that a person was in another place at the time of a crime and so could not have committed it The suspects all had alibis for the day of the robbery.
  2. 2an excuse for something that you have done wrong
See the Oxford Advanced Learner's Dictionary entry: alibi