communism (n.) Look up communism at Dictionary.com
"social system based on collective ownership," 1843, from French communisme (c.1840) from commun (Old French comun; see common (adj.)) + -isme (see -ism). Originally a theory of society; as name of a political system, 1850, a translation of German Kommunismus (itself from French), in Marx and Engels' "Manifesto of the Communist Party." Compare communist. In some cases in early and mid-20c., a term of abuse implying anti-social criminality without regard to political theory.
Each [i.e. socialism, communism, anarchism] stands for a state of things, or a striving after it, that differs much from that which we know; & for many of us, especially those who are comfortably at home in the world as it is, they have consequently come to be the positive, comparative, & superlative, distinguished not in kind but in degree only, of the terms of abuse applicable to those who would disturb our peace. [Fowler]