auditorium
//ˌɔː.dɪˈtɔː.ri.əm//
Noun
auditoriumSingular
auditoriumsPlural
1
A large room or building designed for public gatherings, performances, lectures, or concerts, typically with seating arranged to face a stage or platform.
The school auditorium can seat over 500 people for concerts and lectures.
2
The part of a theater or concert hall where the audience sits.
The auditorium was filled with excited fans waiting for the concert to begin.