I have heard several different things, but how I currently understand it is that Communism is a post-socialism state in which goods are produced with such efficiency and surplus that money becomes worthless and class, labor, and the state are phased out. Is this wrong? Is there any difference at all? I am pretty new to leftism. TIA
One categorical distinction you might make is that socialism implies organizations that agitate within capitalism and struggle against it. Communism implies a stable culture that defends equality and production-for-use.
I base this sort of definition from exanples of socialism and communism that do not overlap: reformist socialism (that advocates for a transformation of class society without a revolution to break the economic power behind it), and primitive communism.