dormitory vs bedroom

dormitory and bedroom both are nouns.

Word	Noun	Adjective	Verb	Adverb
dormitory	Yes	No	No	No
bedroom	Yes	No	No	No

As nouns, bedroom is a hypernym of dormitory; that is, bedroom is a word with a broader meaning than dormitory:

Other hypernyms of dormitory include bedchamber, chamber, sleeping accommodation, sleeping room.

dormitory (noun)	bedroom (noun)
a college or university building containing living quarters for students	a room used primarily for sleeping
a large sleeping room containing several beds