What is the meaning of Cornice?

A horizontal architectural element of a building, projecting forward from the main walls, originally used as a means of directing rainwater away from the building's walls.

A decorative element applied at the topmost part of the wall of a room, as with a crown molding.

A decorative element at the topmost portion of certain pieces of furniture, as with a highboy.

An overhanging edge of snow on a ridge or the crest of a mountain and along the sides of gullies.

To furnish or decorate with a cornice.

carrion crow

frame

cornice

ledge

background, setting

ablative singular of cōrnīx

alternative form of cornișă

Source: wiktionary.org