觀眾坐的地方，以及整棟這樣的建築
兩個意思是同一個空間放大或縮小：先是廳裡觀眾坐的那一區，再把整棟為了這件事蓋的建築也叫同一個名字。
audience seating area · noun · B1
The part of a theatre or concert hall where people sit to watch a play, concert, or show.
觀眾席；聽眾席
核心畫面
You can picture the half of the room that faces the stage: rows of seats up, all of them pointed at one spot. The word names the audience's side of the building — the space built so that a lot of people can sit together and take in whatever is happening at the front.
可以想成一個廳裡面對舞台的那一半：一排排座位往上斜著排開，每個位子都朝同一個點。這個字指的是「觀眾的那一邊」——為了…更多收起
可以想成一個廳裡面對舞台的那一半：一排排座位往上斜著排開，每個位子都朝同一個點。這個字指的是「觀眾的那一邊」——為了讓很多人一起坐下來、看著前面發生的事而蓋出來的空間。One branch
原始詞典資料2 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
auditoriumnoun/ɔː.dɪˈtɔː.ɹi.əm/
- 1
A large room for public meetings or performances.
- 2
The space where the audience is located in a theater, etc.
- The Academy of Music is 204 feet in length and 114 feet in width at the auditorium part, and and ^([sic]) 121 feet at the stage; hence covering an area of 24,020 square feet, of which 9,760 square feet are the area of the stage and its dependencies, and 14,260 square feet are appropriated to the auditorium, saloons, lobbies and so forth.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。