/ 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: maritime Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language