brother-in-law

noun

broth·​er-in-law ˈbrə-t͟hər-ən-ˌlȯ How to pronounce brother-in-law (audio)
ˈbrət͟h-rən-,
ˈbrə-t͟hərn-
plural brothers-in-law ˈbrə-t͟hərz-ən- How to pronounce brother-in-law (audio)
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 Newmark was at home that morning with his guest, Dr. John Griffin, a brother-in-law of the Confederate Gen. Johnston, and Griffin started to do what Henry Baer had run out the door to do, cheering for Jefferson Davis. Patt Morrison, Los Angeles Times, 12 Apr. 2024 Taney, Snowden pointed out, was Key’s brother-in-law. Emi Tuyetnhi Tran, NBC News, 10 Apr. 2024 Police were investigating claims that her brother, Alex Cox, shot his brother-in-law in self-defense when Cox died from natural causes months after the fatal shooting. Meredith Deliso, ABC News, 10 Apr. 2024 The humanitarian worker had borrowed his brother-in-law’s jeep to drive into Khan Younis from the coastal town of Mawassi on Sunday. Karen Deyoung, Washington Post, 9 Apr. 2024 Felecia Turner and her brother-in-law, Joseph Boyd, came south to Luna Pier early Monday from Macomb County's Harrison Township and St. Clair Shores, respectively. Keith Matheny, Detroit Free Press, 8 Apr. 2024 The star, 42 spoke to Entertainment Tonight at the premiere of her new film, Don't Tell Mom the Babysitter's Dead, on Tuesday about how great things are going for her brother-in-law Benji Madden, 45, and his wife Cameron Diaz, 51, with their new baby boy Cardinal. Gabrielle Rockson, Peoplemag, 4 Apr. 2024 Kylie Kelce is getting used to the spotlight as her brother-in-law’s relationship with Taylor Swift continues to elevate the Kelce family’s platforms. Emily Tannenbaum, Glamour, 1 Apr. 2024 There were 11 people in the audience, including Farley’s father and brother-in-law, both of whom were in the movie. Brett Martin, New York Times, 31 Mar. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'brother-in-law.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

14th century, in the meaning defined at sense 1

Time Traveler
The first known use of brother-in-law was in the 14th century

Dictionary Entries Near 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 24 Apr. 2024.

Kids Definition

brother-in-law

noun
broth·​er-in-law
ˈbrət͟h-(ə-)rən-ˌlȯ,
ˈbrət͟h-ərn-ˌlȯ
plural brothers-in-law
ˈbrət͟h-ər-zən-
1
: the brother of one's husband or wife
2
: the husband of one's sister

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