/ Thesaurus / S Synonyms of sea boat Find synonyms for: Noun1. sea boat, boatusage: a boat that is seaworthy; that is adapted to the open seasWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: languid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language