/ Dictionary / Index H headmost: Meaning and Definition of Find definitions for: head•most Pronunciation: (hed'mōst" or, esp. Brit., -must), [key] — adj. most advanced; foremost. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. head money headnote Related Content Daily Word Quiz: modify Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language