congregational

"Congregational" most often describes something related to churches—especially how a church is organized and who has the power to make decisions. A congregational church isn't ruled from the top down by bishops or other central leaders. Instead, each local congregation (the people who worship together) makes its own choices about how the church is run. You can think of it as a church that governs itself.

It can also describe things done by, for, or involving the whole congregation—for example, congregational singing or a congregational meeting where members discuss and vote on church matters. In non-religious settings it can sometimes be used more loosely to mean "group-based," but that use is less common and usually has a church flavor.

The word "congregational" primarily refers to churches and church life. Most importantly, it can describe a system of church governance where each local congregation is self-governing and largely independent, rather than being controlled by a higher authority (such as a diocese) or a wider governing body (such as a synod or presbytery). In this system, members take part in key decisions about policies, leaders, and finances—often through discussion and voting. Historically, this approach is closely tied to Protestant traditions that emphasized local control and greater independence from established church structures.

"Congregational" is also used in a more everyday way to describe things involving a congregation as a gathered group. For instance, congregational singing means the whole congregation sings (not just a choir), and a congregational meeting is a meeting of the members, typically to discuss church business and make decisions together.

By analogy, it can sometimes be used outside religion for group decision-making or shared effort, but that is uncommon. In most contexts, readers will understand it as connected to a church congregation or to a church run by its members.

So, whether it refers to a church's structure or to activities done by the gathered members, "congregational" highlights participation by the whole community and decision-making at the local level.