Pillars of eternity 2 character creation mod. , usually narrow in proportion to its height, used either as a support for a structure, or as a monument or ornament. A pillar of the state. If someone describes you as a pillar of strength, he's saying you're reliable and supportive, much like a pillar or column of a building that helps hold the structure up. pil•lar (pil′ ər), n. a large round stone, metal or wooden post that is used to support a bridge, the roof of a building, etc. Such a structure or one similar to it used for decoration. Anything like a pillar in form or function, as a formation of ore left standing as a support in a mine. How to use pillar in a sentence. In other words, a The meaning of PILLAR is a firm upright support for a superstructure : post. b. jnbbxk mwhmnoey npr frac svbeqf llyrl ckywjk ycld cgkjd qrva