/ Dictionary / Index L lightboat: Meaning and Definition of Find definitions for: light•boat Pronunciation: (līt'bōt"), [key] — n. a small lightship. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lightboard light bomber 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