what is sex?

Answer 1

Sex can refer to a person or animal or other living thing being male, female, or intersexed (meaning having some sex characteristics of both, such as both male and female genitalia).

It can also refer to the act of having sexual intercourse. In its strictest sense as this applies to humans, this involves genital-to-genital stimulation. However, it is used more generally to refer to stimulation of the genitals by other means, involving at least two people.

Definition is linked below.