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”

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”

anything that belongs to a set or class

“snakes are members of the class Reptilia”