portico

The North Portico of the White House, Washington, D.C.

POR´-tuh-coh

A portico is a covered porch, usually at the front of a building,
formed by a colonnade supporting an extended roof.

Think of the White House, which has porticos (or porticoes)
on its north and south sides.

These classical porticos are topped
with triangular shapes called pediments.