Portal

1. The space, at one end, between opposite trusses when these are terminated by inclined braces.
2. A prayer book or breviary; a portass.
3. 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.
4. The lesser gate, where there are two of different dimensions.
5. A door or gate; hence, a way of entrance or exit, especially one that is grand and imposing.
6. Formerly, a small square corner in a room separated from the rest of the apartment by wainscoting, forming a short passage to another apartment.