father-in-law

noun

ˈfä-t͟hə-rən-ˌlȯ How to pronounce father-in-law (audio)
-t͟hərn-ˌlȯ
plural fathers-in-law ˈfä-t͟hər-zən-ˌlȯ How to pronounce father-in-law (audio)
1
: the father of one's spouse
2
archaic : stepfather

Examples of father-in-law in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Scott Johnson started working in the Alliance Bank Center’s food court in 1996, at his father-in-law Pino Lipari’s sandwich shop The Nectary, and Johnson opened Skyway Grill there in 2014. Jared Kaufman, Twin Cities, 11 Jan. 2026 Chris Pratt received a unique Christmas gift from his father-in-law. Lori A Bashian, FOXNews.com, 10 Jan. 2026 New court documents identify London as Turner’s father-in-law. Silas Morgan, The Orlando Sentinel, 10 Jan. 2026 Nicola shared photos from her dad Nelson's 83rd birthday celebration, which featured a group photo with her husband, who also wished his father-in-law a happy birthday on Instagram Stories. Brendan Le, PEOPLE, 9 Jan. 2026 See All Example Sentences for father-in-law

Word History

First Known Use

14th century, in the meaning defined at sense 1

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

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Cite this Entry

“Father-in-law.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/father-in-law. Accessed 15 Jan. 2026.

Kids Definition

father-in-law

noun
fa·​ther-in-law
ˈfät͟h-(ə-)rən-ˌlȯ
ˈfȧt͟h-
-ərn-ˌlȯ
plural fathers-in-law
ˈfät͟h-ər-zən-
ˈfȧt͟h-
: the father of one's husband or wife

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