noun (n)

• a college or university building containing living quarters for students(noun.artifact)

  Synonym:
  dorm, hall, residence hall, student residence
  

  source: wordnet30
• a large sleeping room containing several beds(noun.artifact)

  Synonym:
  dorm room, dormitory room
  

  source: wordnet30
• A sleeping room, or a building containing a series of sleeping rooms; a sleeping apartment capable of containing many beds; esp., one connected with a college or boarding school.(noun)

  source: webster1913