/ Thesaurus / S Synonyms of spade bit Find synonyms for: Noun1. spade bit, bitusage: a thin bit with a center point and cutting edges on either sideWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: lyre Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language