/ Thesaurus / F Synonyms of fri. Find synonyms for: Noun1. Friday, Fri, weekdayusage: the sixth day of the week; the fifth working dayWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language