A room in a university with many seats and a sloped floor, used to hold lectures.
2019, Li Huang, James Lambert, “Another Arrow for the Quiver: A New Methodology for Multilingual Researchers”, in Journal of Multilingual and Multicultural Development, →DOI, page 5:
Inside classrooms and lecture theatres, all signage is in English, as is the signage in the staff office blocks. There were only three exceptions to this complete predominance of English.