The lower division of an entablature, or that part which rests immediately on the column, esp. in classical architecture. See Column.
The group of moldings, or other architectural member, above and on both sides of a door or other opening, especially if square in form.
The wooden moulding around windows and doors used to cover the gap left between the frame and the wall.
Traditionally a moulded wood strip around the edge of a door covering the joint of door frame and plaster or other wall finish.