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
The struggles with your in-laws, the struggles with the sister-in-law.
—
Jessica Radloff, Glamour, 6 Mar. 2026
Amy Kuretsky, Nicole Amor's sister-in-law, told WCCO their family is overwhelmed by all of the love and support.
—Jason Rantala, CBS News, 5 Mar. 2026
Lewis, 32, was a wife and the mother of seven children, ranging from two to 12 years old, according to a GoFundMe fundraiser organized by her sister-in-law, Carmela Leal.
—Stephanie Murray, AZCentral.com, 5 Mar. 2026
Kelli is survived by Allen, her sisters-in-law Judi Hernon and Alicia McHugh, and numerous nieces, nephews and friends.
—Brian Womack, Dallas Morning News, 2 Mar. 2026
See All Example Sentences for sister-in-law
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Jessica Radloff, Glamour, 6 Mar. 2026
Amy Kuretsky, Nicole Amor's sister-in-law, told WCCO their family is overwhelmed by all of the love and support.
—Jason Rantala, CBS News, 5 Mar. 2026
Lewis, 32, was a wife and the mother of seven children, ranging from two to 12 years old, according to a GoFundMe fundraiser organized by her sister-in-law, Carmela Leal.
—Stephanie Murray, AZCentral.com, 5 Mar. 2026
Kelli is survived by Allen, her sisters-in-law Judi Hernon and Alicia McHugh, and numerous nieces, nephews and friends.
—Brian Womack, Dallas Morning News, 2 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 7 Mar. 2026.
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