Breadcrumb Home > Thesaurus > T Synonyms of thumbscrew Find synonyms for: Noun 1. thumbscrew, instrument of torture usage: instrument of torture that crushes the thumb 2. thumbscrew, screw usage: screw designed to be turned with the thumb and fingers WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of thumbscrew (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