auditoriums <p>Rooms or entire buildings designed for a variety of activities such as would occur on a stage before a seated audience; for rooms or buildings used only for theatrical performances, use "theaters;" for rooms with fixed seating designed for lectures, use "lecture halls."</p> <p>Source: AAT</p> <p><a href="http://vocab.getty.edu/page/aat/300004394">http://vocab.getty.edu/page/aat/300004394</a></p>