/ Dictionary / Index L line-haul: Meaning and Definition of Find definitions for: line-haul Pronunciation: (līn'hôl"), [key] — adj. noting or pertaining to the transport, usually by truck, of heavy loads of freight for long distances or between cities. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. line gauge line-hauler Related Content Daily Word Quiz: jugular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language