back stairs
 

* 1.steps located in the back of a room or building secondary set of stairs (not the main stairs). back stairsback stairs, stairs in the back part of a house private stairs. also used adjectively. see: back stairs, backstairs, and backstair, in the vocabulary...see also: backback stairs back stairs` stairs in the back part of a house, as distinguished from the front stairs hence, a private or indirect way.