/ Dictionary / Index L Leopold III: Meaning and Definition of Find definitions for: Leopold III Pronunciation: [key] 1901–83, king of Belgium 1934–51 (son of Albert I). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Leopold II Léopoldville 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