sister

US /ˈsɪs.tɚ/
UK /ˈsɪs.tɚ/
"sister" picture
1.

a girl or woman who has one or both of the same parents as oneself

:
•
My older sister lives in London.
•
She has two younger sisters.
:
sibling
:
brother
2.

a female fellow member of a community, organization, or profession

:
•
We stand together as sisters in this movement.
•
The nurses refer to each other as sister.
:
fellow membercolleaguecomrade
:
sister-in-lawhalf-sister