1. The support for a column.

2. A metal support carrying one end of a bridge truss or girder and transmitting any load to the top of a pier or abutment.

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A supporting part or the base of an upright structure, such as a radar antenna.

A relatively slender column of rock supporting a wider rock mass and formed by undercutting as a result of wind abrasion or differential weathering. Also known as rock pedestal.