Auditorium (noun)

1. A large room or hall designed for public gatherings, especially for theatrical performances, concerts, or lectures.
2. A space within a building or structure that is used for audiences to view or listen to events or performances.
3. A space within a school or university used for assemblies, lectures, or performances.

Origin:

From the latin word 'auditorium' meaning a place for hearing, originally used in the context of a court or tribunal.

Examples:

1. The auditorium was filled with excited fans waiting for the concert to start.
2. The auditorium was equipped with the latest sound and lighting technology.
3. The auditorium was the perfect venue for the graduation ceremony.
4. The auditorium was used for the annual talent show and had a large stage and seating for over a thousand people.
5. The auditorium was the largest room in the building and was used for conferences, lectures and other events.