communism

noun6

1. •
   Any far-left political ideology or philosophy advocating holding the production of resources collectively, especially by seizing it through revolution.
2. •
   Any political social system that implements a communist political philosophy.
3. •
   (informal, disapproving) Any left-wing ideology, government regulations, or policies promoting a welfare state, nationalisation, etc.

   • This tax plan is communism!
4. •
   The international socialist society where classes, money, and the state no longer exist.
5. •
   (rare) Readiness to share scientific findings (the first of the Mertonian norms).
6. •
   (rare) communality, sharedness.

noun3

1. •
   The ideology of political parties that use the term Communist in their names, usually Marxist and Leninist.
2. •
   The socio-economic system based on such parties' ideologies.
3. •
   (US, informal) A state of affairs perceived as oppressive, overly arbitrary, or totalitarian.

   • . ..he shouldn't...just...[say]..."I -- I am responsible for prosperity,"...that's Communism, Sir, you see. — 1953