English

sister noun definition in Relations topic from the Oxford Advanced Learner's Dictionary

sister

 noun: Relations topic
a girl or woman who has the same mother and father as another person She's my sister. an older/younger sister (informal) a big/little/kid sister We're sisters. Do you have any brothers or sisters? My best friend has been like a sister to me (= very close).

Explore other topic groups related to Relations

Family and life stages