copulation

About 0.70 uses per million words.

Meaning

1. noun The act of coupling or joining; union; conjunction.
2. noun Sexual procreation between a man and a woman or transfer of the sperm from male to female; usually applied to the mating process in nonhuman animals; coitus; coition.

Similar words

intercourse coition carnal knowledge sexual congress sex act sexual intercourse coitus sexual relation relation congress

Often followed by

and is with of in was takes the or