In some of the non-Latin-based languages that I know there is a special word for your brother's wife. Is there such a word in English?
Usage would be something like:
She is my __ (My brother's wife)
That would be sister-in-law:
Edit: as ShreevatsaR points out in the comments, if you're looking for a single word that means only "wife of one's brother" and nothing else, then you're out of luck.
Sister-in-law: it can be the sister of your spouse, or the wife of your brother or brother-in-law.
Thank you for your interest in this question. Because it has attracted low-quality answers, posting an answer now requires 10 reputation on this site.
Would you like to answer one of these unanswered questions instead?