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sister-in-law

 - 2 dictionary results

sis⋅ter-in-law

  [sis-ter-in-law]
Use sister-in-law in a Sentence
–noun, plural sis⋅ters-in-law.
1. the sister of one's husband or wife.
2. the wife of one's brother.
3. the wife of the brother of one's husband or wife.
Origin:
1400–50; late ME. See sister, in, law 1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To sister-in-law
sis·ter-in-law   (sĭs'tər-ĭn-lô')
n.   pl. sis·ters-in-law (sĭs'tərz-)

  1. The sister of one's spouse.

  2. The wife of one's brother.

  3. The wife of the brother of one's spouse.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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