Breadcrumb Home > Dictionary > Index M mound builder: Meaning and Definition of Find definitions for: mound' build"er Pronunciation: [key] megapode. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. moundbird Mound Builders ✖ Related Content Daily Word Quiz: umbrage Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language