/ Dictionary / Index L Letha: Meaning and Definition of Find definitions for: Le•tha Pronunciation: (lē'thu), [key] — n. a female given name. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. letdown lethal Related Content Daily Word Quiz: overture Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language