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1. A line of counterthrusting arches raised on columns or piers. Also see blind arcade, coupled arcade, interlacing arcade, intersecting arcade, surface arcade, wall arcade.
2. A covered walk with a line of such arches along one or both long sides.
3. A covered walk with shops and offices along one side, and a line of such arches on the other. Also see stoa.
4. A covered walk, lit from the top, lined with shops or offices on one or more levels.