Your alibi is evidence that proves your innocence. ... The noun alibi is the same word as its Latin root, alibi, which means "excuse." When you provide an alibi, you are giving proof — a certified excuse — that you could not have committed a crime.

What does having an alibi mean?

1 : the explanation given by a person accused of a crime that he or she was somewhere else when the crime was committed. 2 : an excuse intended to avoid blame She made up an alibi for why she was late. alibi. noun.

What is an alibi example?

The definition of an alibi is an excuse used by a person when they're trying to avoid getting into trouble, so they say they were somewhere they weren't. ... When a person is charged with burglary but he says he was busy giving a seminar during the time of the break-in, it is an example of an alibi.