sexual union

noun 0.720

copulative

noun 0.581

cohabitation

noun 0.578

conjoining

noun 0.556

bination

noun 0.548

fecundation

noun 0.542

conjunction

noun 0.541

concubinage

noun 0.537

nookie

noun 0.535

coeducation

noun 0.527

syngamy

noun 0.524

wedlock

noun 0.521

sex on the beach

noun 0.519

intersexual

noun 0.516

interbreeding

noun 0.515

coagulation

noun 0.514

canoodling

noun 0.512

marriage

noun 0.510

canoodle

noun 0.508

coevolution

noun 0.503

communion

noun 0.502

coinfection

noun 0.501

cuckoldry

noun 0.500