/ Thesaurus / S Synonyms of straight pin Find synonyms for: Noun1. straight pin, pinusage: pin consisting of a short straight stiff piece of wire with a pointed end; used to fasten pieces of cloth or paper togetherWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language