auditorium
noun
ˌɔːdɪəˈtɔːriəm
noun
1
the
part
of
a
theatre
where
people
sit
when
watching
a
play,
concert
etc
观众席; 听众席
2
a
large
building
used
for
concerts
or
public
meetings
[美] 音乐厅; 礼堂
AmE