n. 25B6; noun
they talked about sex : SEXUAL INTERCOURSE, intercourse, lovemaking, making love, sex act, (sexual) relations; mating, copulation; informal nooky; Brit. informal bonking, rumpy pumpy, how's your father; formal fornication; technical coitus, coition; dated carnal knowledge.
teach your children about sex : THE FACTS OF LIFE, reproduction; informal the birds and the bees.
adults of both sexes : GENDER.
25A0; have sex HAVE SEXUAL INTERCOURSE, make love, sleep with, go to bed; mate, copulate; seduce, rape; informal do it, go all the way, know in the biblical sense; Brit. informal bonk; N. Amer. informal get it on; euphemistic be intimate; poetic/literary ravish; formal fornicate.