Available Definitions:
1) n. - A series of arches with the columns or piers which support them, the spandrels above, and other necessary appurtenances; sometimes open, serving as an entrance or to give light; sometimes closed at the back (as in the cut) and forming a decorative feature.
2) n. - A long, arched building or gallery.
3) n. - An arched or covered passageway or avenue.