In architecture or construction, the highest point, peak, or tip of any structure.

A room or suite of rooms designed to be lived in, containing at least one bathroom; is separated from, and is usually one of, many similar units within a multiple dwelling. A building containing at least three such dwelling units; an apartment house. Also see efficiency apartment, garden apartment, apartment hotel.

The columnar audience hall in a Persian palace.

An agent which minimizes static electricity in plastics; may consist of chemical additives or metallic devices connected to an electrical ground.

A frame attached around the perimeter of a ceiling-mounted air diffuser, which minimizes the formation of rings of dirt on the ceiling.

A paint with a high coefficient of friction, caused by addition of sand, wood flour, or cork dust; used on steps, porches, and walkways to prevent slipping.

A technique of handling wet paint, by combing, graining, or marbling, so as to expose parts of the undercoat; also called broken-color work.