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
In one case reported by Newsweek, a woman was supported for confronting her sisters-in-law for revealing their pregnancies during her birthday celebration.
—
Matthew Impelli, MSNBC Newsweek, 19 May 2025
Like sister-in-law Debra, Amy couldn't win with her future in-laws, sparking a bond between the two over the sheer absurdity of the Barones.
—Kate Hogan, People.com, 16 May 2025
Her sister-in-law Stephanie O’Sullivan, 43, a clinical mental health practitioner and mother of two whose youngest child is 8, is grateful to have those early days of child care behind her, after paying for preschool costs that equaled a second mortgage for her family.
—Rebekah Riess, CNN Money, 14 May 2025
Their friends moved from across the city into the house next door, and a third couple, the brother and sister-in-law of Raffi’s best friend, bought another home in the row.
—Rhaina Cohen, The Atlantic, 11 May 2025
See All Example Sentences for sister-in-law
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Matthew Impelli, MSNBC Newsweek, 19 May 2025
Like sister-in-law Debra, Amy couldn't win with her future in-laws, sparking a bond between the two over the sheer absurdity of the Barones.
—Kate Hogan, People.com, 16 May 2025
Her sister-in-law Stephanie O’Sullivan, 43, a clinical mental health practitioner and mother of two whose youngest child is 8, is grateful to have those early days of child care behind her, after paying for preschool costs that equaled a second mortgage for her family.
—Rebekah Riess, CNN Money, 14 May 2025
Their friends moved from across the city into the house next door, and a third couple, the brother and sister-in-law of Raffi’s best friend, bought another home in the row.
—Rhaina Cohen, The Atlantic, 11 May 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 28 May. 2025.
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