big sister

American  

noun

1. an elder sister.

2. (sometimes initial capital letters) a woman who individually or as a member of an organized group undertakes to sponsor or assist a girl in need of help or guidance.

3. (sometimes initial capital letters) a young woman in the junior or senior class in college who advises a young woman in the freshman class on studies, social activities, etc., often as a part of a sorority program.

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Example Sentences

See Examples For:

big sister

Taken at a gangster party in City Terrace in 1996, the author and her big sister Maria stare stone-faced, as if daring us to read.

From Los Angeles Times ● Sep. 9, 2026

Halle Berry feels like a big sister, always imbuing a bit of sagacity but distinct youthfulness into every film she does.

From Salon ● May 10, 2026

What she found was that the relationship went beyond business; she sees her agent as part negotiator, part therapist, part big sister.

From The Wall Street Journal ● Mar. 4, 2026

Affectionately called "big sister" by her teammates, she is leading a new generation of Japanese stars including Nakai, 17, and Chiba, 20.

From Barron's ● Feb. 17, 2026

“Listen, Zuri Luz. Let your big sister be. Let things change.”

From "Pride" by Ibi Zoboi

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