The sex that someone was assigned at birth (or before via prenatal sex discernment), which may differ, as in cases of intersexuality, from their current sex assignment.
Sexual activity, usually sexual intercourse unless preceded by a modifier.
A category into which sexually-reproducing organisms are divided on the basis of their reproductive roles in their species.
Genitalia: a penis or vagina.
Another category, especially of humans and especially based on sexuality or gender roles.
The distinction and relation between these categories, especially in humans; gender.
The members of such a category, taken collectively.
To determine the sex of (an animal).
To have sex with.
To have sex.