Family-in-law is your spouse’s family and the family of your sibling’s spouse:
- My husband’s mother is my mother-in-law (belle-mère) and I am her daughter-in-law (belle-fille or bru)
- My husband’s brother is my brother-in-law (beau-frère) and I am his sister-in-law (belle-sœur)
- My sister’s husband is my brother-in-law (beau-frère) and I am his sister-in-law (belle-sœur)
- My son’s wife is my daughter-in-law (belle-fille or bru) and I am her mother-in-law (belle-mère)
