(architecture) A large post, often used as supporting architecture. / Something resembling such a structure. / (figuratively) An essential part of something that provides support.

To provide with pillars or added strength as if from pillars.

present participle of pillar

(meteorology) Rapid rising of smoke clouds due to heat generated by burning munitions and/or existing convection currents.

Having pillars.

simple past tense and past participle of pillar (verb)

A surname.

(society, ergative) To divide into social pillars, in which each social group has its own social institutions.

The act or process of pillarizing.

present participle of pillarize