member
n. countablen. a person who belongs to a group, club, or team. You are a member if you have officially joined a group.
n. an individual belonging to a group, organization, or society. In a technical sense, it refers to a constituent part of a complex structure or a specific element within a set.
She is a member of the local gym.
Every member of the committee must vote on the new proposal before it can become a law.
While the organization welcomes new applicants, full voting rights are reserved for any member who has maintained an active subscription for at least three consecutive years.
Often followed by the preposition 'of' to identify the group.
He is member of the clubHe is a member of the clubAs a countable noun, it requires an article like 'a' or 'the' when used in the singular.