dor ‧ mi ‧ to ‧ ry /ˈdɔːmət ə ri, ˈdɔːmɪt ə ri $ ˈdɔːrmətɔːri/ BrE AmE noun ( plural dormitories ) [countable]
[ Date: 1400-1500 ; Language: Latin ; Origin: dormitorium , from dormire 'to sleep' ]
1 . especially British English a large room for several people to sleep in, for example in a ↑ boarding school or ↑ hostel
2 . American English a large building at a college or university where students live SYN hall of residence British English