Definition of alibi noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈæləbaɪ//
    ; NAmE NAmE//ˈæləbaɪ//
    Solving crime
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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. See related entries: Solving crime
  2. 2an excuse for something that you have done wrong
  3. Word Originlate 17th cent. (as an adverb in the sense ‘elsewhere’): from Latin, ‘elsewhere’. The noun use dates from the late 18th cent.Extra examples She was in the office all of Wednesday and so has a cast-iron alibi. The accused was not able to provide an alibi for the evening. The videotape would have been useful to establish alibis for the defendants. They relied on witnesses to establish alibis for the accused.
See the Oxford Advanced American Dictionary entry: alibi