exterior door vs room access

exterior door and room access both are nouns.

Word	Noun	Adjective	Verb	Adverb
exterior door	Yes	No	No	No
room access	Yes	No	No	No

As nouns, room access is a hypernym of exterior door; that is, room access is a word with a broader meaning than exterior door:

exterior door: a doorway that allows entrance to or exit from a building
room access: the entrance (the space in a wall) through which you enter or leave a room or building; the space that a door can close

Other hypernyms of exterior door include door, doorway, threshold.

exterior door (noun)	room access (noun)
a doorway that allows entrance to or exit from a building	the entrance (the space in a wall) through which you enter or leave a room or building; the space that a door can close