Bishops' dioceses are the geographical areas of responsibility for a bishop in the Christian Church. A DIOCESE is typically divided into parishes, each with its own priest or pastor. The term 'DIOCESE' comes from the Greek word meaning 'administrative district.' The four-letter solution to this crossword is 'SEES, ' which is an acronym for Suffragan, Exarch, and Episcopal See. A Suffragan is a bishop who assists the diocesan bishop in governing the DIOCESE. An Exarch is a bishop who has authority over a region outside the DIOCESE. An Episcopal See is the official seat of a bishop.