/ Thesaurus / P Synonyms of plug hat Find synonyms for: Noun1. bowler hat, bowler, derby hat, derby, plug hat, hat, chapeau, lidusage: a felt hat that is round and hard with a narrow brimWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: respite Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language