alibi, n.All

An Alibi is first cousin to an excuse, and they're both mighty poor relatives.

An Alibi is the legal proof that a person wasn't where he was and, therefore, couldn't do what he did.

An Alibi is first cousin to an excuse, and they're both mighty poor relations.

An Alibi is the proof that you did do what you didn't do so that others will think you didn't do what you did.

An Alibi is a reason with a bad reputation.

An Alibi is no easy thing — the innocent can’t account for their whereabouts nearly as well as the guilty.