1. sexual act; sexual intercourse
Wikipedia definition
2. Sexual intercourseSexual intercourse, also known as copulation or coitus, commonly refers to the insertion of a male's penis into a female's vagina for the purposes of sexual pleasure or reproduction. The term may also describe other sexual penetrative acts, such as anal sex, oral sex and fingering, or use of a strap-on dildo, which can be practiced by heterosexual and homosexual pairings or more than two partners.
Read “Sexual intercourse” on English Wikipedia
Read “性行為” on Japanese Wikipedia
Read “Sexual intercourse” on DBpedia


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