/ Thesaurus / K Synonyms of karl marx Find synonyms for: Noun1. Marx, Karl Marxusage: founder of modern communism; wrote the Communist Manifesto with Engels in 1848; wrote Das Kapital in 1867 (1818-1883)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language