brother-in-law
noun
broth·er-in-law
ˈbrə-t͟hər-ən-ˌlȯ 
ˈbrət͟h-rən-,
ˈbrə-t͟hərn-
plural brothers-in-law
ˈbrə-t͟hərz-ən-
1
: the brother of one's spouse
2
a
: the husband of one's sibling
b
: the husband of one's spouse's sibling
Examples of brother-in-law in a Sentence
Recent Examples on the Web
The license also notes that Bettina's brother-in-law, real estate attorney Bradley McPherson, officiated the wedding.
—
Charlotte Phillipp, PEOPLE, 23 May 2026
His brother-in-law, a bachelor in his mid-fifties who lived in Ain el-Mreisseh, called him in tears.
—Rania Abouzeid, New Yorker, 21 May 2026
The series is directed by Zach Heinzerling, who just happens to be Meyers’ brother-in-law.
—Matthew Carey, Deadline, 20 May 2026
The breakthrough came in 1902, when one of our body’s messages, a dispatch sent from the gut to the pancreas, was discovered by the University College London physiologist Ernest Starling and his brother-in-law, William Bayliss.
—Literary Hub, 20 May 2026
See All Example Sentences for brother-in-law
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Charlotte Phillipp, PEOPLE, 23 May 2026
His brother-in-law, a bachelor in his mid-fifties who lived in Ain el-Mreisseh, called him in tears.
—Rania Abouzeid, New Yorker, 21 May 2026
The series is directed by Zach Heinzerling, who just happens to be Meyers’ brother-in-law.
—Matthew Carey, Deadline, 20 May 2026
The breakthrough came in 1902, when one of our body’s messages, a dispatch sent from the gut to the pancreas, was discovered by the University College London physiologist Ernest Starling and his brother-in-law, William Bayliss.
—Literary Hub, 20 May 2026
See All Example Sentences for brother-in-law
Cite this Entry
“Brother-in-law.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/brother-in-law. Accessed 29 May. 2026.
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