(n.) The passage of a door; entrance way into a house or a room.

French door archway back door barway bulkhead carriage entrance cellar door cellarway door doorjamb doorpost entrance entranceway entry entryway front door gate gatepost gateway hatch hatchway lintel porch portal porte cochere postern propylaeum pylon scuttle side door stile storm door threshold tollgate trap trap door turnpike turnstile