member

The male sex organ (`member' is a euphemism).

One of the persons who compose a social group (especially individuals who have joined and participate in a group organization).

“only members will be admitted”

“a member of the faculty”

An external body part that projects from the body.

An organization that is a member of another organization (especially a state that belongs to a group of nations).

“the library was a member of the interlibrary loan association”

“Canada is a member of the United Nations”

Anything that belongs to a set or class.

“snakes are members of the class Reptilia”

“members of the opposite sex”