A broad-base government is a government that includes the views of different political parties or groups and possibly includes political representatives who articulate these views.

What does "broad-based" mean? (also broadly based) ​based on a wide variety of people, things or ideas; not limited.

Community or broad-based enterprise means an enterprise that has an empowerment shareholder who represents a broad base of members such as a local community or where the benefits support a target group, for example black women, people living with disabilities, the youth and workers. Shares are held via direct equity, non-profit organisations and trusts.

Community organizing is a process where people who live in proximity to each other or share some common problem come together into an organization that acts in their shared self-interest.