/ Thesaurus / B Synonyms of bitt pin Find synonyms for: Noun1. bitt pin, pinusage: a pin through the bitthead to keep the mooring lines from slipping offWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language