Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A relative by marriage.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A relative by marriage (or through affinity). Affinal relative; affine.
  • n. Sometimes specifically a parent-in-law of one's child, for which the dedicated terms co-mother-in-law, co-father-in-law are rare

from the GNU version of the Collaborative International Dictionary of English

  • n. A person who is related by marriage, as distinguished from a blood relative; esp. mother-in-law (the mother of one's spouse), father-in-law (the father of one's spouse), brother-in-law (the brother of one's spouse, or husband of one's spouse's sister), sister-in-law (the sister of one's spouse, or wife of one's spouse's brother).

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a relative by marriage

Etymologies

Back-formation from such compounds as mother-in-law.
(American Heritage® Dictionary of the English Language, Fourth Edition)

Examples

  • These reigns marked the beginning of “in-law” government, a period in which control over the throne passed between certain in-law factions.

    2. Korea, 1800-1910

  • I wouldn't hesitate to use them in speaking to my maiden aunt (- in-law).

    Ensename, por favor!

  • They both inspired me to try to be the best in-law I can be, in their honor.

    troisième age - French Word-A-Day

  • He was kind enough (while still living Lakeside) to help us with how to deal with the VA on behalf of an in-law who had cancer and was having VA administrative problems.

    Where is Uncle Donnie these days?

  • Still, to cart a case of boxed milk or a 100lb bag of hog feed is a bit much to ask of an 80 something year old in-law though that is EXACTLY what my father-in-law does if we aren't there to help.

    Page 3

  • A distant in-law of Chris and Kathleen Matthews has been charged in connection with a major marijuana bust off the coast of Mississippi.

    This just in...: Gucci Mane; Chris Matthews's in-laws

  • Chris Matthews in-law has been arrested in connection with an $8.1 million pot bust, the Cape Cod Times reports.

    Chris Matthews' In-Law Arrested In Huge Pot Bust

  • Chris Matthews' in-law has been arrested in connection with an $8.1 million pot bust, the Cape Cod Times reports.

    Chris Matthews' In-Law Arrested In Huge Pot Bust

  • It'll be something totally ridiculous and abstract -- the third cousin of a former in-law who allegedly makes his living in waste management, a real three-cushion shot -- but it'll be enough for the TV crews to swarm Christie's house.

    Charlie Carillo: An Offer He'll Have to Refuse

  • The 16.2-acre property has an 8,900-square-foot home with six bedrooms, an in-law suite with a separate kitchen, a wine cellar with a dining room and a movie theater with a lobby concession stand.

    Los Angeles Mansion Asks Over $80 Million

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