cunhada

Cunhada is a Portuguese-language term referring to the sister of one's husband, i.e., the brother-in-law's wife. It is a common kinship term used in countries where Portuguese is the primary language, such as Brazil, Portugal, and parts of Angola, Mozambique, and other Portuguese-speaking African nations. The term originates from the Latin root related to "cunhado" (brother-in-law), forming a reciprocal kinship pair in the extended family structure. In social contexts, cunhada may also be used as a respectful address for an older sister-in-law, though its primary and most widely recognized meaning remains the sister of one's spouse. The term is neutral in usage, serving as a standard designation for this specific familial relationship across various Portuguese-speaking cultures.