hall 
(hôl)
(hôl)n.
1. A corridor or passageway in a building.
2. A large entrance room or vestibule in a building; a lobby.
3.
a. A building for public gatherings or entertainments.
b. The large room in which such events are held.
4. A building used for the gatherings and social activities of a church, fraternal order, or other organization.
5.
a. A building belonging to a school, college, or university that provides classroom, dormitory, or dining facilities.
b. A large room in such a building.
c. The group of students using such a building: The entire hall stayed up late studying.
d. Chiefly British A meal served in such a building.
6. The main house on a landed estate.
7.
a. The castle or house of a medieval monarch or noble.
b. The principal room in such a castle or house, used for dining, entertaining, and sleeping.
[Middle English halle, large residence, from Old English heall; see kel-1 in the Appendix of Indo-European roots.]