S: (n) member, fellow member (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"; "a member of the faculty"; "she was introduced to all the members of his family"
S: (n) inductee (a person inducted into an organization or social group) "Ty Cobb and Babe Ruth were 1936 inductees in the National Baseball Hall of Fame"
S: (n) assurance, pledge (a binding commitment to do or give or refrain from something) "an assurance of help when needed"; "signed a pledge never to reveal the secret"
Verb
S: (v) pledge, plight (promise solemnly and formally) "I pledge that I will honor my wife"
S: (v) pledge, subscribe (pay (an amount of money) as a contribution to a charity or service, especially at regular intervals) "I pledged $10 a month to my favorite radio station"
S: (v) toast, drink, pledge, salute, wassail (propose a toast to) "Let us toast the birthday girl!"; "Let's drink to the New Year"
S: (v) pledge (give as a guarantee) "I pledge my honor"
S: (v) pledge (bind or secure by a pledge) "I was pledged to silence"