noun
diocese
DYE-uh-sis/ˈdaɪəsɪs/
A church district under the authority of a bishop.
The map outlines a diocese containing several churches under one bishop's authority.

Etymology
“Thoroughly” and “house” underlie an expression for managing a household. Its meaning broadened to government and an administrative district, then narrowed in church use to a bishop’s jurisdiction.
In context
a particular area of the church's jurisdiction is known as the diocese there are currently 2 903 diocese and each of these diocese has their own Bishop
More examples
- Our parish belongs to the diocese based in the state capital.
- The diocese runs several schools and a food pantry.
- Two neighboring dioceses share a training program for clergy.
Forms
diocese · dioceses
diocesan adjective — Relating to a district under a bishop.
Similar words
- bishopric
- Can mean either a bishop's district or the office itself.
- see
- Emphasizes a bishop's seat or authority rather than territorial boundaries.