sister

Definitions of sister in various dictionaries:

noun - a female person who has the same parents as another person

noun - (Roman Catholic Church) a title given to a nun (and used as a form of address)

noun - a female person who is a fellow member of a sorority or labor union or other group

noun - (slang) sometimes used as a term of address for attractive young women

A girl or woman having the same mother and father as another.

A girl or woman having one parent in common with another; a half sister.

The daughter of a person’s stepparent by a previous marriage; a stepsister.

A kinswoman.

A woman fellow member, as of a sorority.

A fellow woman, friend, or companion.

A soul sister.

A woman who advocates, fosters, or takes part in the feminist movement.

Used as a form of address for a woman or girl.

Ecclesiastical.

A member of a religious order of women; a nun.

Used as a form of address for such a woman, alone or followed by the woman’s name.

A nurse, especially the head nurse in a ward.

One identified as female and closely related to another: “the sisters Death and Night” (Walt Whitman).

Related by or as if by sisterhood; closely related: sister ships; sister cities.

Of or being one of an identical pair: sister chromatids.

verb - to treat like a sister (a female sibling)

SISTER - A sister is a female sibling. Although the term typically refers to the consanguineal relationship, it is sometimes used endearingly to refer to non-...