/ Thesaurus / F Synonyms of flatmate Find synonyms for: Noun1. flatmate, friendusage: an associate who shares an apartment with youWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language