Definitions
1.NounA large post, often used as supporting architecture.
2.NounSomething resembling such a structure."a pillar of smoke"
3.NounAn essential part of something that provides support."He's a pillar of the community."
4.NounA portable ornamental column, formerly carried before a cardinal, as emblematic of his support to the church.
5.NounThe centre of the volta, ring, or manege ground, around which a horse turns.
6.NounThe body from the hips over the core to the shoulders.
7.NounA vertical, often spire-shaped, natural rock formation.
8.VerbTo provide with pillars or added strength as if from pillars.