/ Dictionary / Index G grass tree: Meaning and Definition of Find definitions for: grass' tree" Pronunciation: [key] any Australian plant of the genus Xanthorrhoea, of the lily family, having a stout, woody stem bearing a tuft of long grasslike leaves and a dense flower spike. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. grass style grass widow Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language