/ Dictionary / Index H head gate: Meaning and Definition of Find definitions for: head' gate" Pronunciation: [key] a control gate at the upstream end of a canal or lock. a floodgate of a race, sluice, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. headframe headgear Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language