Ladies'

Kemp left me to go to the ladies'. I pulled out a paperback I had in my pocket.

Source: wiktionary

"...Where's the ladies' in this joint? I've to powder me nose."

Source: wiktionary

"I'm dressed as a woman, but I am still technically a man. I believe that to comply with the law of the land I ought to continue to use the Gents', but in order not to look out place I intend to use the Ladies' from now on. I trust none of you will grass on me..."

Source: wiktionary

When he was quite satisfied with his handiwork, The Poet opened the toilet window, and then walked quickly from the gents' into the ladies'.

Source: wiktionary