Breadcrumb Home > Thesaurus > T Synonyms of tuff Find synonyms for: Noun 1. tuff, tufa, volcanic rock usage: hard volcanic rock composed of compacted volcanic ash WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of tuff (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: occultation Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language