/ Dictionary / Index H hoary-headed: Meaning and Definition of Find definitions for: hoar•y-head•ed Pronunciation: (hôr'ē hed'id, hōr'-), [key] — adj. having the gray or white hair of advanced age. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hoary hoary marmot Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language