Breadcrumb Home > Dictionary > Index H headlight: Meaning and Definition of Find definitions for: head•light Pronunciation: (hed'līt"), [key] — n. a light or lamp, usually equipped with a reflector, on the front of an automobile, locomotive, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: headlight (Thesaurus) head lettuce headline ✖ Related Content Daily Word Quiz: musth Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language