/ Dictionary / Index L Lucas: Meaning and Definition of Find definitions for: Lu•cas Pronunciation: (l'kus), [key] — n. born 1945, U.S. film director. a male given name, form of Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: lucas (Thesaurus) lucarne Lucas van Leyden Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language