Noun

• S: (n) intercourse, social intercourse (communication between individuals)
• S: (n) sexual intercourse, intercourse, sex act, copulation, coitus, coition, sexual congress, sexual relation, relation, carnal knowledge (sexual activity between individuals, especially the insertion of a man's penis into a woman's vagina until orgasm and ejaculation occur)
• direct hyponym / full hyponym
• S: (n) defloration (the act of depriving a woman of her virginity (especially by rupturing the hymen through sexual intercourse))
• S: (n) fuck, fucking, screw, screwing, ass, nooky, nookie, piece of ass, piece of tail, roll in the hay, shag, shtup (slang for sexual intercourse)
• S: (n) hank panky (illicit sexual intercourse)
• S: (n) penetration (the act (by a man) of inserting his penis into the vagina of a woman)
• S: (n) unlawful carnal knowledge, criminal congress (forbidden or tabu sexual intercourse between individuals)
• S: (n) extramarital sex, free love (sexual intercourse between individuals who are not married to one another)
• S: (n) adultery, criminal conversation, fornication (extramarital sex that willfully and maliciously interferes with marriage relations) "adultery is often cited as grounds for divorce"
• S: (n) fornication (voluntary sexual intercourse between persons not married to each other)
• S: (n) incest (sexual intercourse between persons too closely related to marry (as between a parent and a child))
• part meronym
• direct hypernym / inherited hypernym / sister term
• derivationally related form