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.
My younger son's wife, however, never calls her father-in-law or his wife. Carolyn Hax, Washington Post, 31 Mar. 2026 Caroline Ban, of Chesterton, was listening to the speeches with her father-in-law Dan Ban, who was visiting from Minneapolis, and her 10-year-old son Teddy. Shelley Jones, Chicago Tribune, 30 Mar. 2026 In Chalker’s telling, Ejection offered the woman condolences about her father-in-law’s assassination by Mossad. David D. Kirkpatrick, New Yorker, 30 Mar. 2026 My father-in-law called me and was like, everybody is talking about you at the Stop & Shop. Steven J. Horowitz, Variety, 27 Mar. 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 6 Apr. 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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