The Simple English Wikipedia has an article on: Diocese Pronunciation (US) IPA (key): /ˈdaɪ.ə.sɪs/ Noun Singular diocese Plural dioceses A diocese is the area looked after by the a bishop in some churches. It contains several parishes. This short entry needs someone to make it better. You can help Wiktionary by adding to it. Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads