A cove or series of coves, as the concaved surface under the overhang of a projecting upper story.

The creation of a concave cut or “groove” in the edge or surface of a workpiece. A cove can be produced with a router bit or by passing the workpiece across the top of a rotating table saw blade at an angle with the aid of a special coving fixture.

The concave decorative moulding that joins a ceiling to the walls.

Decorative pre-formed plasterwork (or expanded polystyrene) between the wall and the ceiling.

Curved junction between wall and ceiling or (rarely) between ceiling and floor.

Returning a floor covering up against a wall surface. Properly laid, it will look continuous with the floor carpet. In fact, it's a strip of carpet laid separately.

A decorative plaster or polystyrene molding used to cover the join between walls and ceiling.