/ Dictionary / Index L longboat: Meaning and Definition of Find definitions for: long•boat Pronunciation: (lông'bōt", long'-), [key] — n. Naut. (formerly) the largest boat carried by a sailing ship. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: longboat (Thesaurus) longbeard Longboat Key Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language