Breadcrumb Home > Thesaurus > J Synonyms of jello Find synonyms for: Noun 1. jello, Jell-O, gelatin dessert, hydrocolloid usage: fruit-flavored dessert (trade mark Jell-O) made from a commercially prepared gelatin powder WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of jello (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: meretricious Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language