Try Our Apps


90s Slang You Should Know


[fah-th er-in-law] /ˈfɑ ðər ɪnˌlɔ/
noun, plural fathers-in-law.
the father of one's husband or wife.
Origin of father-in-law
Middle English word dating back to 1350-1400; See origin at father, in, law1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
Examples from the Web for father-in-law
Contemporary Examples
Historical Examples
  • His father-in-law died in Hungary, Sigismund's first wife his only child.

  • Doyle Grahame laid it to his art of winning a father-in-law.

    The Art of Disappearing John Talbot Smith
  • Doubtless Hall had attended his father-in-law in his last illness, but his skill and affection were not sufficient to save him.

    Shakespeare's Family Mrs. C. C. Stopes
  • At this juncture she paused, surprised to observe that her father-in-law was laughing.

    Jewel Clara Louise Burnham
  • And then my formidable “future” father-in-law got to the root of the matter.

    The Dew of Their Youth S. R. Crockett
British Dictionary definitions for father-in-law


noun (pl) fathers-in-law
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
Cite This Source

Word of the Day

Difficulty index for father-in-law

Few English speakers likely know this word

Word Value for father

Scrabble Words With Friends

Nearby words for father-in-law