hall

hall /ˈhɑːl/ noun
plural halls
hall
/ˈhɑːl/
noun
plural halls
Britannica Dictionary definition of HALL
[count]
1 
: a usually long, narrow passage inside a building with doors that lead to rooms on the sides
2 
: the area inside the entrance of a building
3 
a  : a large room or building for meetings, entertainment, etc.
— often used in proper names — see also city hall, mess hall, music hall, town hall
b  : a building where students live at a college or university : dormitory
4 
British : a large, impressive house — used in proper names

the halls of power

— see 1power