/ Thesaurus / S Synonyms of sixty fourth Find synonyms for: Noun1. one-sixty-fourth, sixty-fourth, common fraction, simple fractionusage: one part in sixty-four equal partsAdjective1. sixty-fourth, 64th, ordinal (vs. cardinal)usage: the ordinal number of sixty-four in counting orderWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language