- a girl or woman who has the same mother and father as another person
- She's my sister.
- an older/a younger sister
- (informal) a big/little sister
- (informal) a kid sister
- my twin sister
- We're sisters.
- the Brontë sisters—Charlotte, Emily and Anne
- Do you have any brothers or sisters?
- sister of somebody He married the sister of his best friend.
- She's the sister of the bride.
- Joe's sister Mary lives in Seattle.
- My best friend has been like a sister to me (= very close).
Oxford Collocations Dictionaryadjective- big
- elder
- older
- …
- brothers and sisters
- brothers or sisters
- like sisters
- …
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- used for talking to or about other members of a women’s organization or other women who have the same ideas, purpose, etc. as yourself
- They supported their sisters in the dispute.
- Sister(British English) a senior female nurse who is in charge of a hospital ward see also charge nurseTopics Healthcarec1
- Sistera female member of a religious group, especially a nun
- Sister Mary
- the Sisters of Charity
- (in the US) a member of a sorority (= a club for a group of female students at a college or university)
- Carolyn's sorority sisters at Indiana University
- (North American English, informal) used by black people as a form of address for a black woman
- (usually used as an adjective) a thing that belongs to the same type or group as something else
- our sister company in Italy
- a sister ship
Word OriginOld English, of Germanic origin; related to Dutch zuster and German Schwester, from an Indo-European root shared by Latin soror.
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sister