/ Thesaurus / F Synonyms of floor board Find synonyms for: Noun1. floorboard, floor board, boardusage: a board in the floorNoun1. floorboard, floor board, boardusage: the floor of an automobileWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: dormant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language