/ Thesaurus / E Synonyms of ernst mach Find synonyms for: Noun1. Mach, Ernst Machusage: Austrian physicist and philosopher who introduced the Mach number and who founded logical positivism (1838-1916)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language