Advertisement - Continue reading below

Definition of "co-sister-in-law" []

  • One's husband's brother's wife; or more generally one's spouse's sister-in-law, the sister of one spouse in relation to the siblings of the other spouse. (noun)
  • One's brother-in-law or sister-in-law's sister; that is, one's sibling's spouse's sister (one's sister's husband's sister or one's brother's wife's sister). (noun) : Text is available under the Creative Commons Attribution-ShareAlike License

Words like "co-sister-in-law"