/ˈæləbaɪ ||; ˈæləˌbaɪ/noun [C] (plural alibis)an alibi (for sth) a statement by sb that says you were in a different place at the time of a crime and so cannot be guilty of the crime 以不在现场为理由的申辩；不在犯罪现场证明；不在场证明: He had a good alibi for the night of the robbery. 他有有力的不在场证据，证明自己与当晚的劫案无关。