sister

noun
sis·​ter | \ ˈsi-stər How to pronounce sister (audio) \

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
3a : 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
6a : girl, woman
b : person usually used in the phrase weak sister
7 : a member of a sorority

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Examples of sister in a Sentence

The sisters live in the convent.

Recent Examples on the Web

Tragically, Ben died in 2014, which prompted Luke and Caroline to step in and help raise his sister and brother-in-law's kids. Kayla Keegan, Good Housekeeping, "How 'American Idol' Judge Luke Bryan and His Kids Have Pushed Past Tragedy," 30 Mar. 2019 Her older sister, Princess Beatrice, has a private account. Erica Gonzales, Harper's BAZAAR, "The Queen Just Posted Her First Instagram, So Consider Her Your New Favorite Influencer," 7 Mar. 2019 Getty ImagesSamir Hussein Eugenie's big sister, Princess Beatrice, was also there for the occasion, strolling alongside Autumn Phillips (the wife of Peter Phillips, her cousin and Princess Anne's son). Kayleigh Roberts, Marie Claire, "Princess Eugenie and Jack Brooksbank Made Their Royal Christmas Debut This Year," 26 Dec. 2018 Princess Eugenie, the youngest daughter of Prince Andrew and Sarah, Duchess of York is ninth in line for the coveted throne—just behind her elder sister, Princess Beatrice. Katelyn Chef, Teen Vogue, "Princess Eugenie’s Royal Wedding: Everything We Know So Far," 5 Oct. 2018 In addition to Zaid, Hamza is survived by a 10-year-old sister and his mother, Salwa Mustafa, who was on the phone with her 16-year-old son for part of the attack, the Post reported. Lucy Diavolo, Teen Vogue, "16-Year-Old Syrian Refugee Hamza Mustafa Was One of the First Christchurch Victims Laid to Rest," 20 Mar. 2019 Cassie RandolphInstagram Cassie's sister and her boyfriend chime in. Katherine J. Igoe, Marie Claire, "Every Cassie and Colton Photo Now 'The Bachelor' Stars Are Going Public," 13 Mar. 2019 The grandmother meant well, but struggled to care for the girls, leaving Boke to look after her sister and the home. Shay Maunz, Glamour, "This Young Woman Is Fighting Poverty in Tanzania by Teaching Women to Make Clothes," 8 Mar. 2019 Back in May 2018, Elle Fanning (Dakota's younger sister and Marc Jacobs' muse) Instagrammed a behind-the-scenes shot from the set with Jolie photobombing her selfie. Nicole Saunders, Harper's BAZAAR, "Angelina Jolie Looks Both Terrifying and Beautiful in the New Maleficent Poster and I'm Shook," 7 Mar. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sister.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of sister

before the 12th century, in the meaning defined at sense 1

History and Etymology for sister

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

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Statistics for sister

Last Updated

8 Apr 2019

Look-up Popularity

Time Traveler for sister

The first known use of sister was before the 12th century

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More Definitions for sister

sister

noun

English Language Learners Definition of sister

: a girl or woman who has one or both of the same parents as you
informal used when talking to a woman
: a member of a religious community of women

sister

noun
sis·​ter | \ ˈsi-stər How to pronounce sister (audio) \

Kids Definition of sister

1 : a female person or animal related to another person or animal by having one or both parents in common
2 : a member of a religious society of women : nun
3 : a woman related to another by a common tie or interest

Other Words from sister

sisterly adjective

sister

noun
sis·​ter | \ ˈsis-tər How to pronounce sister (audio) \

Medical Definition of sister

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

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More from Merriam-Webster on sister

Rhyming Dictionary: Words that rhyme with sister

Spanish Central: Translation of sister

Nglish: Translation of sister for Spanish Speakers

Britannica English: Translation of sister for Arabic Speakers

Comments on sister

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