/ Thesaurus / U Synonyms of universal time Find synonyms for: Noun1. Greenwich Mean Time, Greenwich Time, GMT, universal time, UT, UT1, timeusage: the local time at the 0 meridian passing through Greenwich, England; it is the same everywhereWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language