outside door vs doorway

outside door and doorway both are nouns.

Word	Noun	Adjective	Verb	Adverb
outside door	Yes	No	No	No
doorway	Yes	No	No	No

As nouns, doorway is a hypernym of outside door; that is, doorway is a word with a broader meaning than outside door:

outside door: a doorway that allows entrance to or exit from a building
doorway: 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 outside door include door, room access, threshold.

outside door (noun)	doorway (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