Definition of backhouse in English:

backhouse

(also backus)

noun

  • 1Regional rare The rear part of a house, or a subsidiary building situated to the rear of the main premises of a house, especially one used for a specific purpose, as a wash house, storage space, etc. Chiefly regional in later use (now rare).

  • 2North American North American. A small building or room containing a toilet, especially one which is behind or outside a main building.

Origin

Mid 16th century. From back- + house.

Pronunciation

backhouse

/ˈbakhaʊs/