/ Dictionary / Index L lewis bolt: Meaning and Definition of Find definitions for: lew'is bolt" Pronunciation: [key] — Building Trades. Building Trades. an anchor bolt having a conical base around which concrete or lead is poured to hold it. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Lewis base Lewis gun 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