dormitory
n. countablen. a large room with many beds where people sleep, or a building at a college where students live.
n. a large bedroom containing numerous beds for several people, or a residential building providing sleeping quarters for students or staff at an institution.
I live in a college dormitory with three other students.
The university built a new dormitory to house the growing number of international students arriving each semester.
While the historic dormitory offered a sense of tradition, many students preferred the modern apartments for their increased privacy and updated kitchen facilities.
From Middle English dormitory, dormytory, dormytorye, borrowed from Latin dormītōrium (“a sleeping-room”), from dormiō (“to sleep”). Doublet of dormitorium and dorter.
Often shortened to 'dorm' in informal American English.