/ Dictionary / Index H heft: Meaning and Definition of Find definitions for: heft Pronunciation: (heft), [key] — n. weight; heaviness: It was a rather flimsy chair, without much heft to it. significance or importance. the bulk or main part. —v.t. to test the weight of by lifting and balancing: He hefted the spear for a few moments, and then flung it at the foe. to heave; hoist. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: heft (Thesaurus) Hefner candle hefty Related Content Daily Word Quiz: plausible Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language