/ Dictionary / Index L Lewis gun: Meaning and Definition of Find definitions for: Lew'is gun" Pronunciation: [key] a light, air-cooled, gas-operated machine gun with a circular magazine, first used in World War I. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lewis bolt Lewisham Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language