/ Dictionary / Index E earth pillar: Meaning and Definition of Find definitions for: earth' pil"lar Pronunciation: [key] ? Geol. Geol. a pillar of earthy matter left by erosion of the surrounding ground. Random House Unabridged Dictionary, Copyright 1997, by Random House, Inc., on Infoplease. earthperson earthquake Related Content Daily Word Quiz: abscond Analogy of the Day: Today?s Analogy Spelling Bee: Today?s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language