sister (
http://definr.com/sister)
adj : being associated as a companion or associate; "fellow
traveler"; "brother workers"; "sister ship" [syn:
fellow(a),
brother(a),
sister(a)]
n 1: a female person who has the same parents as another person;
"my sister married a musician" [syn:
sis] [ant:
brother]
2: (Roman Catholic) a title given to a nun (and used as a form
of address); "the Sisters taught her to love God" [syn:
Sister]
3: a female person who is a fellow member of a sorority or
labor union or other group; "none of her sisters would
betray her"
4: (slang) sometimes used as a term of address for attractive
young women [syn:
baby]