Archdioceses are a type of religious administrative regions governed by an archbishop. There are several synonyms for the word "archdioceses" that can be used to describe similar types of religious regions. The term "diocese" is a common synonym, which refers to a district or region under the jurisdiction of a bishop. Other synonyms include "eparchy," which is a district or territory under the jurisdiction of an Eastern Orthodox bishop, and "metropolis," which refers to an area under the governance of a metropolitan bishop. Additionally, words such as "province," "jurisdiction," and "territory" may also be used to describe archdioceses or similar religious regions.