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.
Santos Jimenez remains in good physical shape, with Debbie Jimenez noting that her father-in-law would likely be going for a walk after the interview. Graham Womack, Sacbee.com, 26 Oct. 2025 Nixon was also injured in the crash, his father-in-law Jerry Miller told The OC Register. Madison E. Goldberg, PEOPLE, 21 Oct. 2025 This was how Arkady Rotenberg, Alina’s former father-in-law, became a billionaire. Julia Ioffe, New Yorker, 19 Oct. 2025 His father-in-law grew up in the San Fernando Valley and attended San Fernando Valley High. Charlie Vargas, Oc Register, 17 Oct. 2025 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 29 Oct. 2025.

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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