Breadcrumb Home > Thesaurus > U Synonyms of uncle Find synonyms for: Noun 1. uncle, kinsman usage: the brother of your father or mother; the husband of your aunt 2. uncle, benefactor, helper usage: a source of help and advice and encouragement; "he played uncle to lonely students" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of uncle (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: voxpopuli Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language