A Communist is the belief in a social, political, and economic ideology and movement without different social classes in which the methods of production are owned and controlled by all its members.
Reference Definition by Businessdictionary.com: A Communist is an economic and social system in which all (or nearly all) property and resources are collectively owned by a classless society and not by individual citizens. Based on the 1848 publication ‘Communist Manifesto’ by two German political philosophers, Karl Marx (1818-1883) and his close associate Friedrich Engels (1820-1895), it envisaged common ownership of all land and capital and withering away of the coercive power of the state. In such a society, social relations were to be regulated on the fairest of all principles: from each according to his ability, to each according to his needs.
