An archdiocese is a significant ecclesiastical jurisdiction in the Roman Catholic Church, led by an archbishop. It typically encompasses a large geographical area and includes several smaller dioceses, which are overseen by bishops. The archdiocese serves as a central point for administrative and spiritual leadership within its region. Archdioceses play a crucial role in the Church's structure, facilitating communication and coordination among the various dioceses. They are often located in major cities and are responsible for implementing Church policies, promoting religious education, and supporting local parishes within their boundaries.