Breadcrumb Home > Thesaurus > S Synonyms of smoothen Find synonyms for: Verb 1. smooth, smoothen, change surface usage: make smooth or smoother, as if by rubbing; "smooth the surface of the wood" 2. polish, smooth, smoothen, shine, fancify, beautify, embellish, prettify usage: make (a surface) shine; "shine the silver, please"; "polish my shoes" 3. smoothen, change usage: become smooth WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of smoothen (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: agitprop Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language