/ ˈæləbaɪ; NAmE / noun
1.
evidence 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.
an excuse for sth that you have done wrong
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WORD ORIGIN
late 17th cent. (as an adverb in the sense elsewhere ): from Latin , elsewhere . The noun use dates from the late 18th cent.