What is a group of Communists called?

A group of communists is commonly called an Assembly. Other collective nouns you may see include Bloc and Coalition.

Collective nouns are words used to collectively describe a group of individuals or objects. In the case of communists, there isn't a specific collective noun used exclusively for them. However, one could create a noun depending on the context or intention while respecting the principles of objectivity and fairness. Considering the shared ideologies and the aspiration for solidarity among communists, a potential collective noun for communists could be a "unity" of communists. This term reflects the idea of coming together for a common purpose, highlighting the belief in collective action and cooperation to achieve shared goals. Alternatively, a collective noun for communists could also be a "coalition" of communists. This word implies a temporary alliance formed by different groups with similar perspectives or objectives, emphasizing the possibility of cooperation among diverse communist parties or individuals. Ultimately, the choice of collective noun should preserve impartiality and recognize the multiple facets within the communist movement.