1.
[syn: membership, rank]
2. the state of being a member;
The Collaborative International Dictionary of English v.0.48:
Membership \Mem"ber*ship\, n.
1. The state of being a member.
[1913 Webster]
2. The collective body of members, as of a society.
[1913 Webster]
WordNet (r) 3.0 (2006):
membership
n 1: the body of members of an organization or group; "they
polled their membership"; "they found dissension in their
own ranks"; "he joined the ranks of the unemployed" [syn:
membership, rank]
2: the state of being a member