Breadcrumb Home > Thesaurus > T Synonyms of tach Find synonyms for: Noun 1. tachometer, tach, measuring instrument, measuring system, measuring device usage: measuring instrument for indicating speed of rotation WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of tach (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: anomie Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language