A room containing a number of beds (and often some other furniture and/or utilities) for sleeping, often applied to student and backpacker accommodation of this kind.
A building or part of a building which houses students, soldiers, monks etc. who sleep there and use communal further facilities.
A dormitory town.
A commercial overnight lodging place, with dormitory accommodation and shared facilities, especially a youth hostel
A temporary refuge for the homeless providing a bed and sometimes food
A small, unendowed college in Oxford or Cambridge.
to stay in a hostel as part of a travel