pediment

/ˈpɛdɪmənt/
noun
  1. A triangular gable or decorative triangular feature at the top of a building, especially over a doorway or window, originally used in classical architecture.
    • The architect added a simple pediment above the front door to give the house a classical look.
    • Many government buildings feature a pediment supported by tall columns.
    • The ancient temple's pediment was decorated with marble sculptures of gods and heroes.
Synonyms