/ Dictionary / Index H head start: Meaning and Definition of Find definitions for: head' start' Pronunciation: [key] an advantage given or acquired in any competition, endeavor, etc., as allowing one or more competitors in a race to start before the others. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. headstand headstay Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language