A portico; a covered walk.
A covered 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. A porch often has chair(s), table(s) and swings.
The platform outside the external hatch of a spacecraft.
A terraced structure.
A series of terraces.
A stand with a series of tiers.
The formation of terraces.