This is the 8085th most frequent Japanese word.
客席
"客席" means "audience seating" or "guest seats."
In this example, "客席" specifies the seating area provided for moviegoers in a cinema.
映画館の客席はとても快適で、長時間座っても疲れません。
The seats in the cinema are very comfortable, so you won't get tired even after sitting for a long time.
In this sentence, "客席" refers to the designated seating area in a theater where the audience sits.
劇場の客席は満員だった。
The audience seats in the theater were completely filled.
Here, "客席" is used to describe the area in a concert venue where the attendees are seated.