What is the difference between Communism, Marxism, Socialism, Fabian Society, Frankfurt School, Liberalism

Because that's how their division and control work. If one fails, you have the others as plan b, c, and d

Communism: no state, common property (ie, tools of production are owned by a classless society)

Marxism: an ideology based on a doctrine called "historical materialism". it asserts that capitalism is self-destructive and will ultimately lead to socialism, and then communism. Marxism is like a bridge between socialism and communism.

Socialism: social state and common property.

Fabian society: a UK reformist organisation. it doesn't believe in the ethics of revolution. it proposes a gradual democratic socialism.

Frankfurt School: a school led by philosophers like as Adorno, Horkheimer, Habermas, etc.

Liberalism: a metaphysically Cartesian, humanistic ideology. it asserts absolute free will of individuals.

The spelling