/ Thesaurus / E Synonyms of extra time Find synonyms for: Noun1. overtime, extra time, time period, period of time, periodusage: playing time beyond regulation, to break a tieWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: candid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language