1) Entrance 2) Entranceway 3) Entree 4) Entry 5) Entryway 
• (a.) Causing vomiting; emetic; vomitive. • (n.) A principal door of a large ancient building, as of an amphitheater. • (n.) An emetic; a vomit.
(vom´ĭ-tor″e) emetic.
Vom'i·to·ry adjective [ Latin vomitorious .] Causing vomiting; emetic; vomitive. 
In architecture a vomitory is the principal door of a large ancient building, as of an amphitheatre for example.
[n] - an entrance to an amphitheater or stadium
vomitory 1. Inducing vomiting; emetic. 2. Of or pertaining to vomiting. 3. An opening through which something is ejected or discharged.
A passageway running underneath the auditorium to the stage.
noun an entrance to an amphitheater or stadium