/ Dictionary / Index L Longden: Meaning and Definition of Find definitions for: Long•den Pronunciation: (lông'dun, long'-), [key] (Johnny), born 1907, U.S. jockey and thoroughbred horse trainer. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Long Day's Journey Into Night* long distance 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