A female child of the same parents as another person.
My sister and I share the same birthday.
A term of address for a woman who is a member of the same organization or shares the same beliefs.
Sisters, let's stand together for our cause.
A senior female nurse in charge of a hospital ward.
The sister in charge was very kind and supportive.
A female member of a religious congregation, often a nun.
Sister Mary was a kind and loving person.
A member of a college or university women's social organization.
Carolyn's sorority sisters organized a charity event.
A term used by black people to address a black woman.
Yes, sister, I'll be there to support you.
Something that is of the same type or closely related to another.
This painting is a sister to the one in the gallery.