Definition of "Member" :

noun: the male sex organ (member' is a euphemism)

noun: an external body part that projects from the body

noun: 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."

noun: 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."

noun: anything that belongs to a set or class

"Snakes are members of the class Reptilia."