the GNU version of the Collaborative International Dictionary of English
n. An outbuilding for washing, esp. one for washing clothes; a laundry.
The Century Dictionary and Cyclopedia
n. A house, generally fitted with boilers, tubs, etc., for washing clothes, etc.; a washing-house.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a building or outbuilding where laundry is done
Word Usage
"The washhouse is rather badly equipped in that there are only 27 washing bowls for 102 men; furthermore the one boiler holds only enough water for about"