Dictionary.com
definitions
  • synonyms

father-in-law

[fah-th er-in-law]
See more synonyms for father-in-law on Thesaurus.com
noun, plural fa·thers-in-law.
  1. the father of one's husband or wife.
Show More

Origin of father-in-law

Middle English word dating back to 1350–1400; see origin at father, in, law1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

fathersiblingmothercousinfolkunclenieceauntagnatecognateconnectionbloodfolksrelationgrandparentssister-in-lawstepbrothermother-in-lawsibstepparent

Examples from the Web for father-in-law

Contemporary Examples

Historical Examples


British Dictionary definitions for father-in-law

father-in-law

noun plural fathers-in-law
  1. the father of one's wife or husband
Show More
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