changing room

a locker room, usually with showers, for athletes.

Origin of changing room

First recorded in 1935–40

I am well aware that ladies are catered for very badly at most of the tournaments in regard to changing-room accommodation.

Lawn Tennis for Ladies |Mrs. Lambert Chambers
But on the way down to hall, he overheard Mansell talking to Tester in the door of the changing-room.

The Loom of Youth |Alec Waugh
A crowd had collected round the notice-board in the changing-room.

The Loom of Youth |Alec Waugh
The changing-room was filled with the sound of oaths and curses.

The Loom of Youth |Alec Waugh

The Chief made a tour of the changing-room during afternoon school, and his eyes were opened.

The Loom of Youth |Alec Waugh