/ Dictionary / Index E earthnut: Meaning and Definition of Find definitions for: earth•nut Pronunciation: (ûrth'nut"), [key] — n. any of various roots, tubers, or underground growths, as the peanut and the truffle. any of the plants producing these. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: earthnut (Thesaurus) earthmoving earthpea Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language