sister
nounADJ.
big, elder, older | baby, kid, little, small, wee, younger | twin | full (= sharing both parents) | half- (= sharing one parent), step- (also stepsister) (= the daughter from an earlier marriage of your stepfather or stepmother) | beloved, much-loved | dead, deceased, late | unmarried
PHRASES
brother and sister
Have you got any brothers and sisters?| like sisters
The girls are so close, they're like sisters.