room access vs entryway

room access and entryway both are nouns.

Word	Noun	Adjective	Verb	Adverb
room access	Yes	No	No	No
entryway	Yes	No	No	No

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

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
entryway: something that provides access (to get in or get out)

Other hypernyms of room access include entrance, entranceway, entree, entry.

room access (noun)	entryway (noun)
the entrance (the space in a wall) through which you enter or leave a room or building; the space that a door can close	something that provides access (to get in or get out)