An entablature is the horizontal structure supported by columns in classical architecture. It consists of three main parts: the architrave (lowest part), the frieze (middle part), and the cornice (topmost part).
The frieze is the middle section of the entablature, often decorated with reliefs or inscriptions. It lies between the architrave and cornice and plays a decorative and visual role in classical architecture.
The pediment, which is often seen above the entablature, is the triangular section of a roof above the columns, but it is not part of the entablature itself.