A building column is a structural element that supports the weight of a building. The term can refer to several different types of columns, including a PILLAR (6 letters), which is a large, round column that is often used in classical architecture; a Doric (5 letters) column, which is a type of Greek column characterized by its fluted shaft and simple capital; a Lally (5 letters) column, which is a steel column with a wood core; ONES (4 letters), which is a type of Greek column characterized by its slender proportions and ornate capitals; an Ionic (5 letters) column, which is a type of Greek column characterized by its volutes and ornate capitals; and a PILASTER (8 letters), which is a flattened column that is often used as a decorative element.