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
Sara Jones Biden, Joe Biden's sister-in-law, James Biden's wife.
—
Brendan Cole, MSNBC Newsweek, 14 July 2025
According to the poster, the sister-in-law now works part-time at the library and also teaches as an online professor at the community college.
—Ashley Vega, People.com, 13 July 2025
Green confirmed that his brother, sister-in-law, and two of their children died in the flash floods in Central Texas.
—Raechal Shewfelt, EW.com, 9 July 2025
My sister-in-law would have found her happy place in the gym, with its expansive sea views; my 11-year-old daughter would have loved the science lab in the kids' club.
—Erica Silverstein, Travel + Leisure, 9 July 2025
See All Example Sentences for sister-in-law
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Brendan Cole, MSNBC Newsweek, 14 July 2025
According to the poster, the sister-in-law now works part-time at the library and also teaches as an online professor at the community college.
—Ashley Vega, People.com, 13 July 2025
Green confirmed that his brother, sister-in-law, and two of their children died in the flash floods in Central Texas.
—Raechal Shewfelt, EW.com, 9 July 2025
My sister-in-law would have found her happy place in the gym, with its expansive sea views; my 11-year-old daughter would have loved the science lab in the kids' club.
—Erica Silverstein, Travel + Leisure, 9 July 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 21 Jul. 2025.
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