sister-in-law
noun
sis·ter-in-law
ˈsi-st(ə-)rən-ˌlȯ 
-tərn-ˌlȯ
plural sisters-in-law
ˈsi-stər-zən-ˌlȯ
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
His parents and sisters-in-law also were hospitalized with injuries.
—
Odette Yousef, NPR, 19 Mar. 2026
These relatives presumably don’t hate the sister-in-law, whose heart was set on a beloved ritual.
—Judith Martin, Sun Sentinel, 17 Mar. 2026
An investigation by the union’s outside counsel discovered evidence that Clark had an inappropriate relationship with his sister-in-law, a union employee since 2023.
—Ronald Blum, Chicago Tribune, 16 Mar. 2026
Kennedy would first fly to Martha’s Vineyard and drop off his sister-in-law.
—Stephanie Nolasco, FOXNews.com, 14 Mar. 2026
See All Example Sentences for sister-in-law
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Odette Yousef, NPR, 19 Mar. 2026
These relatives presumably don’t hate the sister-in-law, whose heart was set on a beloved ritual.
—Judith Martin, Sun Sentinel, 17 Mar. 2026
An investigation by the union’s outside counsel discovered evidence that Clark had an inappropriate relationship with his sister-in-law, a union employee since 2023.
—Ronald Blum, Chicago Tribune, 16 Mar. 2026
Kennedy would first fly to Martha’s Vineyard and drop off his sister-in-law.
—Stephanie Nolasco, FOXNews.com, 14 Mar. 2026
See All Example Sentences for 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 22 Mar. 2026.
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