noun.
A diocese or region of a church which a bishop governs.
noun.
The office or function of being a bishop
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
the territorial jurisdiction of a bishop
Word Usage
"The twenty-five years 'bishopric is chronologically impossible, as it would make Peter, at the interview with Paul at Antioch, to have been then for some years bishop of Rome!"