sister

noun

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sis·ter | \ ˈsi-stər

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

Other Words from sister More Example Sentences Phrases Containing sister Learn More About sister

Examples of sister in a Sentence

The sisters live in the convent.

Recent Examples on the Web The Biden administration did not immediately confirm details of the prisoner swap, but a sister of Frerichs, who is from Lombard, Illinois, thanked U.S. government officials who helped secure her brother’s release. — Eric Tucker, Chicago Tribune, 19 Sep. 2022 President Joe Biden met with Cherelle Griner, wife of WNBA star Brittney Griner, and the sister of former Marine Paul Whelan in the Oval Office on Friday. — Paige Mcglauflin, Fortune, 19 Sep. 2022 Carol Barnes, the sister of David Barnes, said his trial is scheduled for September 21. — William Thornton | Wthornton@al.com, al, 16 Sep. 2022 Wantchekon posits, though, that Queen Hangbe, the twin sister of King Akaba, planted the seed for the idea of the women warriors in the early 1700s. — Laura Zornosa, Time, 16 Sep. 2022 Biden sat down with Elizabeth Whelan, the sister of Paul Whelan. — Eric Tucker, BostonGlobe.com, 16 Sep. 2022 The Associated Press first reported the news that Biden will host Griner's camp and the sister of Paul Whelan, the Michigan corporate security executive who is also jailed in Russia. — Chris Bumbaca, USA TODAY, 15 Sep. 2022 Yelena, the adoptive sister of Scarlett Johansson's Natasha Romanoff, later returned on Disney+'s Hawkeye series. — Randall Colburn, EW.com, 10 Sep. 2022 She was recognized as a princess in 2020—she's the half-sister of King Philippe. — Emily Burack, Town & Country, 10 Sep. 2022 See More

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.