Breadcrumb Home > Thesaurus > S Synonyms of sixty Find synonyms for: Noun 1. sixty, 60, LX, large integer usage: the cardinal number that is the product of ten and six Adjective 1. sixty, 60, lx, threescore, cardinal (vs. ordinal) usage: being ten more than fifty WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of sixty (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: demagogue Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language