A roof supported by bowstring trusses

See double-bellied.

A saw having a narrow blade which is held taut in a bowed frame.

A carefully maintained, level piece of lawn, originally reserved for the game of bowls (bowling).

A floor which slopes downward toward a central area, as toward a stage in a theater.

An open-top diffusing glass or plastic enclosure used to shield a light source from direct view and to redirect or