The term "arch abbot" was commonly used in religious circles, specifically in the Catholic Church, to refer to a senior or high-ranking abbot. Synonyms for this term include "abbot general," "superior abbot," "chief abbot," and "primate abbot." These terms emphasize the authority and leadership role of the abbot, signifying that they are at the top of their order or congregation. Other related terms that can be used in this context include "prior general" and "provincial." These terms are often used interchangeably depending on the specific religious order or institution. Overall, these synonyms emphasize the significance of the abbot's role in his religious community.