1. (n.) A door or gate; hence, a way of entrance or exit, especially one that is grand and imposing.

2. (n.) The lesser gate, where there are two of different dimensions.

3. (n.) Formerly, a small square corner in a room separated from the rest of the apartment by wainscoting, forming a short passage to another apartment.

4. (n.) By analogy with the French portail, used by recent writers for the whole architectural composition which surrounds and includes the doorways and porches of a church.

5. (n.) The space, at one end, between opposite trusses when these are terminated by inclined braces.

6. (n.) A prayer book or breviary; a portass.

7. (a.) of or pertaining to a porta, especially the porta of the liver; as, the portal vein, which enters the liver at the porta, and divides into capillaries after the manner of an artery.

French door archway back door barway bulkhead carriage entrance cellar door cellarway door doorjamb doorpost doorway entrance entrance hall entranceway entry entryway foyer front door galilee gate gatepost gateway hatch hatchway lintel lobby narthex porch porte cochere portico postern propylaeum pylon scuttle side door stile stoa storm door threshold tollgate trap trap door turnpike turnstile vestibule