/ Dictionary / Index H haversack: Meaning and Definition of Find definitions for: hav•er•sack Pronunciation: (hav'ur-sak"), [key] — n. a single-strapped bag worn over one shoulder and used for carrying supplies. a soldier's bag for rations, extra clothing, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: haversack (Thesaurus) havers Haversian canal Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language