There are five architectonic orders: three of Greek origin: Doric, Jonic and Corinthian; two of Italian origin: Tuscan and Composite.
For architectural orders, it means a composition of column, cornice and pedestal with all of its other ornaments. Order means regular and perfect disposition of concurrent parts, all meeting together beautifully: therefore, order is the opposite of confusion.
There are two essential parts to architectonic order: column and cornice; the pedestal that is inserted under the column is not strictly necessary as acroterion rest or small pedestal that is inserted above the cornice. The column is divided into three parts: base, trunk and capital and the cornice in architrave, frieze and cornice.