Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The sister of one's spouse.
  • noun The wife of one's sibling.
  • noun The wife of the sibling of one's spouse.

from The Century Dictionary.

  • noun A husband's or wife's sister; also, a brother's wife. See brother-in-law.

from the GNU version of the Collaborative International Dictionary of English.

  • noun The sister of one's husband or wife; also, the wife of one's brother; sometimes, the wife of one's husband's or wife's brother.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A female relative of one's generation, separated by one degree of marriage:
  • noun less common Co-sister-in-law: The wife of one's sibling-in-law.

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

  • noun the sister of your spouse

Etymologies

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Examples

  • In the morning, I called my sister-in-law and told her to come back over.

    Teed Off Sherrie Daly 2011

  • In the morning, I called my sister-in-law and told her to come back over.

    Teed Off Sherrie Daly 2011

  • I called my sister-in-law, who is an elementary school teacher, and told her what was going on.

    How to Talk so Kids Can Learn Adele Faber 1995

  • I called my sister-in-law, who is an elementary school teacher, and told her what was going on.

    How to Talk so Kids Can Learn Adele Faber 1995

  • I called my sister-in-law, who is an elementary school teacher, and told her what was going on.

    How to Talk so Kids Can Learn Adele Faber 1995

  • I called my sister-in-law, who is an elementary school teacher, and told her what was going on.

    How to Talk so Kids Can Learn Adele Faber 1995

  • Kevin yanks his cell phone from his pocket and calls his sister-in-law in Queens, the wife of his brother Joe.

    Zebratown Greg Donaldson 2010

  • Waldemar Ruiz had called his sister-in-law after he shot his wife with a small handgun, Hammann said.

    chron.com Chronicle 2011

  • If I think it’s necessary to bypass you and call your sister-in-law, I will.

    No Way Out Andrea Kane 2001

  • My sister-in-law has lived in Sydney Australia for her entire adult life, 40 years now, and on a trip to visit us in Cleveland in the late 80s she went off the the Giant Eagle grocery, only to return 30 minutes later having left a basket with the manager.

    Page 2 2009

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