1. A room in the back part of a house.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• vack room,
• nack room,
• hack room,
• gack room,
• bzck room,
• bsck room,
• bwck room,
• bqck room,
• baxk room,
• bavk room,
• bafk room,
• badk room,
• bacj room,
• bacm room,
• bacl room,
• baco room,
• baci room,
• back eoom,
• back doom,
• back foom

The adjective form of the word "back room" is "backroom".

The plural of the "back room" can be the "back rooms".

The singular of the "back room" can be the "back room".