Short Answer 
Communism emphasizes community ownership and equality, prioritizing social interests, while dictatorship centers around the sole authority of a dictator who controls resources and governance. In communism, wealth and resources are shared equally among all, but in dictatorship, wealth becomes concentrated in the hands of one person, creating disparity and social hierarchy.
1. Understanding Governance
In communism, the focus is on the community, where social ownership and equality are emphasized. This system ensures that the society is prioritized over individual interests. In contrast, a dictatorship prioritizes the power of a single individual, known as the dictator, who wields complete control over the nation and its governance.
2. Ownership and Profit Distribution
Communism promotes common ownership, meaning that resources and profits are shared among all members of the community equally. This approach seeks to eliminate disparities in wealth. However, in a dictatorship, the dictator owns the resources, leading to a concentration of wealth and power in one individual, leaving the community with minimal benefits.
3. Equality and Social Structure
In a communist society, everyone is considered equal, and there is a collective approach to managing resources and the economy. Conversely, a dictatorship creates a social hierarchy where equality is non-existent. The dictator often benefits disproportionately, leading to significant societal divisions and inequities.