/ ˈmembəʃɪp; NAmE -bərʃ-/ noun
1.
[ U ] ( BrE ) membership (of sth) | ( NAmE ) membership (in sth) the state of being a member of a group, a club, an organization, etc. :
Who is eligible to apply for membership of the association?
a membership card / fee
2.
[ C +sing./pl. v . ] the members, or the number of members, of a group, a club, an organization, etc. :
The membership has / have not yet voted.
The club has a membership of more than 500.