noun
complicity; joint perpetration
Refers to the act of committing a crime together with another person, or the state of being an accomplice. Often used in legal contexts, but also in everyday language for being jointly responsible for something negative.
See also: 正犯
彼は強盗の共犯として逮捕された。
He was arrested as an accomplice in the robbery.
共犯の疑いで取り調べを受ける。
Be questioned on suspicion of complicity.