IPA: /kəˈmjuːnəlɪzəm/
KK: /kəˈmjunəlˌɪzəm/
A belief or system where goods and property are owned collectively by a community rather than by individuals.
The village practiced communalism, sharing resources and responsibilities among all its members.
Communalism is formed from "com-" (meaning together) and "munis" (from Latin, meaning service or duty). The word refers to a system or ideology that emphasizes the importance of community and collective responsibility.
Think of people working 'together' ('com-') to fulfill their 'duties' ('munis') in a community — that's what communalism is all about.
No commonly confused words.