The Oxford Thesaurus An A-Z Dictionary of Synonyms - intercoursen.

1) commerce, traffic, trade, dealings, exchange, communication, contact, interaction: In normal business intercourse our paths often cross. 2) sexual intercourse, coitus, coition, sexual congress or union, mating, copulation, sexual relations, carnal knowledge, making love, lovemaking, intimacy, sexual connection, Colloq sex: The plaintiff admits engaging in intercourse with the defendant.