/ Dictionary / Index L lock bay: Meaning and Definition of Find definitions for: lock' bay" Pronunciation: [key] a broadened section of a canal before the gates of a lock. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lockage lockbox Related Content Daily Word Quiz: benevolent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language