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Showing results for father-in-law. Search instead for father-s-day.
Synonyms

father-in-law

American  
[fah-ther-in-law] / ˈfɑ ðər ɪnˌlɔ /

noun

fathers-in-law plural
  1. the father of one's spouse.


father-in-law British  

noun

  1. the father of one's wife or husband

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of father-in-law

First recorded in 1350–1400; Middle English fader in lawe; see origin at father, in, law 1; from Middle English in-lawe “in law,” i.e., “a person within the regulation and protection of the law,” based on the prohibition by Roman civil law and, later, Christian canon law, of marriages within four degrees of consanguinity, i.e., up to and including first cousins

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Christian Horvath, whose father-in-law lives in Silverado, said as a former Redondo Beach City Council member he understands the challenges of navigating complicated development proposals.

From Los Angeles Times Jul. 9, 2026

Nagraj, 46, managed the paid caregivers working at his in-laws’ house while coordinating doctors’ appointments for his father-in-law, and escorting him to them.

From MarketWatch Jun. 23, 2026

He has visited with the president on numerous occasions and his father-in-law, Ronald Lauder, is a longtime friend of Trump.

From Barron's May 22, 2026

“Sabbir doesn’t want to share with us information about the situation,” said his father-in-law, Kutub Uddin Biswas.

From The Wall Street Journal May 9, 2026

If Lavinia was to be won Aeneas could not count on any help from his future father-in-law.

From "Mythology: Timeless Tales of Gods and Heroes" by Edith Hamilton

Fathers, fathers-in-law, and brothers of current Royals players and staff travel with the group.

From Washington Times Jun. 6, 2023

Each of the sons’ fathers-in-law also had accounts at the bank worth millions of dollars, as did other businessmen linked to the Mubaraks, whom Egyptian authorities tried on corruption charges.

From Seattle Times Feb. 21, 2022

About 35 to 40 percent of Purush Spandana will be purchased by women, who hope that by casually leaving a copy around the house, their husbands, fathers-in-law or sons may give it a glance.

From New York Times Nov. 12, 2012

And Paul finally realizes that his office/apartment/mole cave of blurry boundaries, provocative teenagers and angry fathers-in-law from exotic complicated countries, does not, right now, feel like the best place to raise a 12-year-old.

From Salon Nov. 24, 2010

It has become a Calcutta custom for possible fathers-in-law to cross-examine suitors on their text-books; but few boys are able to satisfy the test, however brilliant their acquirements may be.

From Tales of Bengal by Banerjea, S. B.

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