Množina: episcopacies
In the Christian church, a system of government in which administrative and spiritual power over a district (diocese) is held by a bishop.
The Roman Catholic, Eastern Orthodox, Anglican, and Episcopal churches are episcopalian; episcopacy also exists in the Lutheran Church of Scandinavia and of the US, where bishops are elected for districts called “synods”, and in most branches of the American Methodist Church, where bishops are supervisory officials.