casa

Casa is a word in several Romance languages, primarily Spanish, Portuguese, and Italian, meaning house or home. The word derives from Latin casa, meaning hut or cottage, and has cognates in many languages.

In Spanish and Portuguese, casa is the common noun for a dwelling; in Italian, casa is the singular for "house" and the plural is case. The term occurs in countless place names and expressions such as casa madre (mother’s house) or casa dolce casa (home sweet home). In Romanian, casă is the word for "house" with a diacritic.

In architecture and culture, "Casa" appears in the names of notable buildings and districts, such as Casa Rosada, the presidential palace of Argentina, and Casa Batlló and Casa Milà in Barcelona, both designed by Antoni Gaudí.

The word also functions as a surname in Spanish- and Italian-speaking communities, and appears in media, brands, and hotel names as a proper noun. While its primary semantic field is domestic space, casa serves as a widely used element in toponyms, cultural titles, and personal names across many languages.