The ideology of political parties that use the term Communist in their names, usually Marxist and Leninist. / The socio-economic system based on such parties' ideologies.

A member of a formally constituted Communist Party. / A proponent of the kind of communism formally espoused by such a party, typically either Marxism, or more commonly, Leninism or Maoism.

Of or relating to a formally constituted Communist Party. / (inexact, sometimes proscribed) Alternative letter-case form of communist, of or related to the general philosophy of communism.

plural of communist

(archaic, derogatory, politics) A Chinese communist.

(derogatory, ethnic slur, politics) Of or pertaining to Serbo-Communism.

(derogatory, ethnic slur, politics) A communist, either of Serbian heritage or collaborating with Serbs.

(derogatory, politics) Yugoslavian socialism when viewed as a Serb political ideology.

(politics, economics) Of, supporting, relating to, or advocating anarcho-communism.

Non-Oxford British English standard spelling of communization.