also: だついしょ
Specifically the area in a bathhouse, swimming pool, or similar facility where you undress before entering the bathing area. Also used for the sink/mirror area adjacent to a bathroom in a home.
I took off my clothes in the changing room of the hot spring.
脱衣所の洗面台で顔を洗う。
I wash my face at the sink in the dressing area.
Before getting into the hot spring, I went into the changing room and took off my clothes.
There are free lockers in the changing room of this public bathhouse.
I changed clothes in the changing room before getting into the pool.