/ Dictionary / Index L lanthorn: Meaning and Definition of Find definitions for: lant•horn Pronunciation: (lant'hôrn", lan'turn), [key] — n. Archaic. lantern. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lanthanum Lantsang Related Content Daily Word Quiz: digression Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language