Seating area for spectators in a theater, stadium, etc.; the audience seats or stands.
観客席は満員で、立ち見の人もいた。
The audience seats were full, and there were people standing as well.
前列の観客席から見ると舞台がよく見える。
If you sit in the front rows, you can see the stage well.
観客席のチケットは発売直後に完売した。
Tickets for the audience seating sold out soon after release.