Quick definitions from WordNet (alibi)
▸ noun: (law) a defense by an accused person purporting to show that he or she could not have committed the crime in question
▸ noun: a defense of some offensive behavior or some failure to keep a promise etc. ("Every day he had a new alibi for not getting a job")
▸ verb: exonerate by means of an alibi
▸ Also see alibi
▸ noun: (law) a defense by an accused person purporting to show that he or she could not have committed the crime in question
▸ noun: a defense of some offensive behavior or some failure to keep a promise etc. ("Every day he had a new alibi for not getting a job")
▸ verb: exonerate by means of an alibi
▸ Also see alibi