1. (a.) Having only one slope or pitch; -- said of a roof.

2. (n.) A shed or slight building placed against the wall of a larger structure and having a single-pitched roof; -- called also penthouse, and to-fall.

Nissen hut Quonset hut box cavity cell cellule chamber compartment crib crypt cubicle enclosed space gatehouse hold hole hollow hut hutch kiosk lean-to manger news kiosk newsstand outbuilding outhouse pavilion pew sentry box shack shanty shed stall stand tollbooth tollhouse vault