auditorium
room with a space for presenter(s) and an audience space, often used for speeches, lectures, or performances
en-US/ˌɔdəˈtɔɹiəm/
en-GB/ˌɔːdɪˈtɔːɹɪəm/
room with a space for presenter(s) and an audience space, often used for speeches, lectures, or performances