dressing room

from The American Heritage® Dictionary of the English Language, 4th Edition

• n. A room, as in a theater, for changing costumes or clothes and applying makeup.

from Wiktionary, Creative Commons Attribution/Share-Alike License

• n. A room in a theatre etc in which performers may change costume and apply makeup
• n. A small room adjoining a domestic bedroom where people may dress or undress in privacy
• n. A changing room

from the GNU version of the Collaborative International Dictionary of English

• n. an apartment appropriated for making one's toilet.

from The Century Dictionary and Cyclopedia

• n. A room, as one opening from a bedroom, intended to be used for dressing: as, the dressing-rooms of a theater.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• n. a room in which you can change clothes