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
His brother, sister-in-law, cousin and her husband will be bringing up the gifts at Mass, and his oldest nephew read at the vespers ceremony.
—
Alexa Herrera, CBS News, 6 Feb. 2026
Langstraat Bui is survived by her husband, siblings and parents, as well as seven nieces and nephews, her father-in-law Ban Bui; eight sisters-in-law, eight brothers-in-law and 42 Bui nephews and nieces.
—Darcel Rockett, Chicago Tribune, 5 Feb. 2026
In 2018, the company had a viral moment when Catherine’s sister-in-law, the Duchess of Sussex, Meghan Markle, wore their jeans at a public event, setting off a frenzy that spiked demand and overwhelmed the tiny operation of around 20 employees at the time.
—Angela Velasquez, Sourcing Journal, 5 Feb. 2026
The news was shared at a celebratory dinner Tuesday night at Frevo in New York City, cohosted by Veronica Beard cofounders and sisters-in-law Veronica Swanson Beard and Veronica Miele Beard, alongside CFDA chief executive officer Steven Kolb.
—Lisa Lockwood, Footwear News, 4 Feb. 2026
See All Example Sentences for sister-in-law
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Alexa Herrera, CBS News, 6 Feb. 2026
Langstraat Bui is survived by her husband, siblings and parents, as well as seven nieces and nephews, her father-in-law Ban Bui; eight sisters-in-law, eight brothers-in-law and 42 Bui nephews and nieces.
—Darcel Rockett, Chicago Tribune, 5 Feb. 2026
In 2018, the company had a viral moment when Catherine’s sister-in-law, the Duchess of Sussex, Meghan Markle, wore their jeans at a public event, setting off a frenzy that spiked demand and overwhelmed the tiny operation of around 20 employees at the time.
—Angela Velasquez, Sourcing Journal, 5 Feb. 2026
The news was shared at a celebratory dinner Tuesday night at Frevo in New York City, cohosted by Veronica Beard cofounders and sisters-in-law Veronica Swanson Beard and Veronica Miele Beard, alongside CFDA chief executive officer Steven Kolb.
—Lisa Lockwood, Footwear News, 4 Feb. 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 Feb. 2026.
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