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
On June 1, Meghan put her own spin on one of her sister-in-law's favorite blouses, channeling Kate Middleton in an Instagram post from As Ever.
—
Hannah Malach, InStyle, 5 June 2026
Meghan Markle is also a fan of Jenni Kayne, and the Duchess of Sussex, 44, has even worn the same pleated skirt as her sister-in-law.
—Meredith Kile, PEOPLE, 3 June 2026
Despite Kate and Harry’s incredibly close bond, Andersen said Kate had an awkward first meeting with the woman who would become her sister-in-law.
—Stephanie Nolasco, FOXNews.com, 27 May 2026
Founded in 2010 by two sisters-in-law, Veronica Miele Beard and Veronica Swanson Beard wanted to create a brand with classics that speak to multifaceted, multitasking women.
—Noelle Alviz-Gransee, Kansas City Star, 22 May 2026
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Hannah Malach, InStyle, 5 June 2026
Meghan Markle is also a fan of Jenni Kayne, and the Duchess of Sussex, 44, has even worn the same pleated skirt as her sister-in-law.
—Meredith Kile, PEOPLE, 3 June 2026
Despite Kate and Harry’s incredibly close bond, Andersen said Kate had an awkward first meeting with the woman who would become her sister-in-law.
—Stephanie Nolasco, FOXNews.com, 27 May 2026
Founded in 2010 by two sisters-in-law, Veronica Miele Beard and Veronica Swanson Beard wanted to create a brand with classics that speak to multifaceted, multitasking women.
—Noelle Alviz-Gransee, Kansas City Star, 22 May 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 14 Jun. 2026.
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