sister

sis·ter

noun \ˈsis-tər\

Definition of SISTER

1

: a female who has one or both parents in common with another

2

often capitalized

a : a member of a women's religious order (as of nuns or deaconesses); especially : one of a Roman Catholic congregation under simple vows

b : a girl or woman who is a member of a Christian church

3

a : a girl or woman regarded as a comrade

b : a girl or woman who shares with another a common national or racial origin; especially : a black girl or woman

4

: one that is closely similar to or associated with another <sister cities>

5

chiefly British : nurse

6

a : girl, woman

b : person —usually used in the phrase weak sister

7

: a member of a sorority

Examples of SISTER

1. The sisters live in the convent.

Origin of SISTER

Middle English suster, sister, partly from Old English sweostor and partly from Old Norse systir sister; akin to Latin soror sister, Sanskrit svasṛ

First Known Use: before 12th century

Rhymes with SISTER

bister, blister, clyster, glister, klister, lister, Lister, mister, tryster, twister

sis·ter

noun \ˈsis-tər\   (Medical Dictionary)

Medical Definition of SISTER

chiefly British : a head nurse in a hospital ward or clinic; broadly : nurse