sister-in-law

[ sis-ter-in-law ]
/ ˈsɪs tər ɪnˌlɔ /

noun, plural sis·ters-in-law.

the sister of one's husband or wife.
the wife of one's brother.
the wife of the brother of one's husband or wife.

Nearby words

  1. sister joseph's nodule,
  2. sister kenny's treatment,
  3. sister of charity,
  4. sister of loretto,
  5. sister of mercy,
  6. sisterhood,
  7. sisterly,
  8. sistine,
  9. sistine chapel,
  10. sistine madonna

Origin of sister-in-law

1400–50; late Middle English. See sister, in, law1

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for sister-in-law


British Dictionary definitions for sister-in-law

sister-in-law

noun plural sisters-in-law

the sister of one's husband or wife
the wife of one's brother
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

Word Origin and History for sister-in-law

sister-in-law

n.

mid-15c.; see sister + in-law.

Online Etymology Dictionary, © 2010 Douglas Harper