English Dictionary

The general and popular term for a firm, upright, insulated support for a superstructure; a pier, column, or post; also, a column or shaft not supporting a superstructure, as one erected for a monument or an ornament.
Source : opted (114531)  - auto

Figuratively, that which resembles such a pillar in appearance, character, or office; a supporter or mainstay; as, the Pillars of Hercules; a pillar of the state.
Source : opted (114532)  - auto

A portable ornamental column, formerly carried before a cardinal, as emblematic of his support to the church.
Source : opted (114533)  - auto

The center of the volta, ring, or manege ground, around which a horse turns.
Source : opted (114534)  - auto

Having a support in the form of a pillar, instead of legs; as, a pillar drill.
Source : opted (114535)  - auto