1) Bishopric 2) Religious body 3) The diocese of a bishop 4) The incumbency of a bishop 5) The order or body of bishops 1) Episcopacy 2) See 
• (v. i.) To act as a bishop; to fill the office of a prelate. • (n.) A bishopric; the office and dignity of a bishop. • (n.) The time of a bishop`s rule. • (n.) The collective body of bishops.
Group of bishops (of the world, a nation, a region, etc.)
E·pis'co·pate noun [ Latin episcopatus , from episcopus : confer French épiscopat . See Bishop .] 1. A bishopric; the office and dignity of a bishop. 2. The collective body of bishops. 3. The time of a bishop's rule. 
episcopate The office, position, or term of office of a bishop.
noun the term of office of a bishop
the office and dignity of a bishop; bishopric. · the order or body of bishops. · the incumbency of a bishop. · the diocese of a bishop.