sister

nouns

a female person who has the same parents as another person
"my sister married a musician"
is derived from
is derived from
antonym
a female person who is a fellow member of a sorority or labor union or other group
"none of her sisters would betray her"
is a member of
a social club for female undergraduates
is a type of (narrower)
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"
(slang) sometimes used as a term of address for attractive young women