Synonyms for Entryway:

n.

atrium, anteroom, antechamber, cubicle, airlock, changing room, control room, boiler room, booth, chamber. entrance (noun)
opening, entrance, access, ingress, intake, aperture, door, input.
entryway (noun)
entranceway, entrance, entree, entry.
opening (noun)
ingress.
vestibule (noun)
antechamber, anteroom.

Other synonyms:

Other relevant words:
entranceway, airlock, entree, entry.