/ Thesaurus / T Synonyms of trillions Find synonyms for: Noun1. million, billion, trillion, zillion, jillion, gazillion, large indefinite quantity, large indefinite amountusage: a very large indefinite number (usually hyperbole); "there were millions of flies"2. trillion, one million million million, large integerusage: the number that is represented as a one followed by 18 zeros; "in England they call a quintillion a trillion"3. trillion, one million million, 1000000000000, large integerusage: the number that is represented as a one followed by 12 zeros; "in England they call a trillion a billion"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: laudable Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language