sister-in-law

noun

sis·​ter-in-law ˈsi-st(ə-)rən-ˌlȯ How to pronounce sister-in-law (audio)
-tərn-ˌlȯ
plural sisters-in-law ˈsi-stər-zən-ˌlȯ How to pronounce sister-in-law (audio)
1
: the sister of one's spouse
2
a
: the wife of one's sibling
b
: the wife of one's spouse's sibling

Examples of sister-in-law in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Esther is the sister-in-law of Adam Brody‘s character Rabbi Noah Roklov, and the wife of Timothy Simons’ Sasha. Denise Petski, Deadline, 11 Feb. 2025 The drama follows a terminally ill sister-in-law whose reunion with her four younger sisters unravels as long-simmering family tensions surface. Naman Ramachandran, Variety, 10 Feb. 2025 The night before the big game, she was spotted dining at Gianna Restaurant in New Orleans with Travis’ sister-in-law Kylie Kelce, her own parents, and HAIM sisters Danielle and Alana. Caroline Bell, StyleCaster, 9 Feb. 2025 Once inside, fans snapped Swift greeting Kelce's sister-in-law, Kylie Kelce, at the bar. Julie Mazziotta, People.com, 9 Feb. 2025 See all Example Sentences for sister-in-law 

Word History

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of sister-in-law was in the 15th century

Dictionary Entries Near sister-in-law

Cite this Entry

“Sister-in-law.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sister-in-law. Accessed 16 Feb. 2025.

Kids Definition

sister-in-law

noun
sis·​ter-in-law
ˈsis-t(ə-)rən-ˌlȯ,
-tərn-ˌlȯ
plural sisters-in-law
-tər-zən-
1
: the sister of one's spouse
2
a
: the wife of one's sibling
b
: the wife of one's spouse's sibling

More from Merriam-Webster on sister-in-law

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