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
New reporting from the New York Times outlines instances in which the now 27-year-old allegedly used his ties to the Trumps for his own gain, including a now-spoiled deal with Jared Kushner, the husband of his sister-in-law, Ivanka Trump.
—
Jillian Frankel, People.com, 22 Aug. 2025
My sister-in-law is her alcoholic husband’s enabler.
—Jeanne Phillips, Mercury News, 20 Aug. 2025
Dear Abby: My sister-in-law is her alcoholic husband’s enabler.
—Abigail Van Buren, Boston Herald, 20 Aug. 2025
Survivors include his brother, David; his sister-in-law, Cynthia; and his nephews, Jesse, Brett, and Austin, and their six children.
—Mike Barnes, HollywoodReporter, 15 Aug. 2025
See All Example Sentences for sister-in-law
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Jillian Frankel, People.com, 22 Aug. 2025
My sister-in-law is her alcoholic husband’s enabler.
—Jeanne Phillips, Mercury News, 20 Aug. 2025
Dear Abby: My sister-in-law is her alcoholic husband’s enabler.
—Abigail Van Buren, Boston Herald, 20 Aug. 2025
Survivors include his brother, David; his sister-in-law, Cynthia; and his nephews, Jesse, Brett, and Austin, and their six children.
—Mike Barnes, HollywoodReporter, 15 Aug. 2025
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 29 Aug. 2025.
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