Porch

A covered and inclosed entrance to a building, whether taken from the interior, and forming a sort of vestibule within the main wall, or projecting without and with a separate roof. Sometimes the porch is large enough to serve as a covered walk. See also Carriage porch, under Carriage, and Loggia.

A portico; a covered walk.

a structure attached to the exterior of a building often forming a covered entrance