suru verb (special)
commit adultery; fornicate; have illicit sex
Refers to consensual extramarital or illicit sexual relations. Often used in legal or formal contexts.
彼は妻以外の女性と姦する罪を犯した。
He committed the crime of adultery with a woman other than his wife.
suru verb (special)
Refers to non-consensual sexual acts, including rape and sexual violation. Strongly negative and often used in legal or historical descriptions.
戦時中、多くの女性が敵兵に姦された。
During the war, many women were violated by enemy soldiers.