The noun member has 5 senses (first 4 from tagged texts)
1. (521) member -- (one of the persons who compose a social group (especially individuals who have joined and participates in a group organization); "only members will be admitted"; "a member of the faculty"; "she was introduced to all the members of his family")
2. (39) member -- (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")
3. (17) extremity, appendage, member -- (an external body part that projects from the body; "it is important to keep the extremities warm")
4. (16) member -- (anything that belongs to a set or class; "snakes are members of the class Reptilia"; "members of the opposite sex")
5. penis, phallus, member -- (the male organ of copulation (`member' is a euphemism))