/ Thesaurus / D Synonyms of doorknocker Find synonyms for: Noun1. knocker, doorknocker, rapper, deviceusage: a device (usually metal and ornamental) attached by a hinge to a doorWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: heifer Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language