Ostiary is a term referring to a person who is responsible for managing or guarding the entrance to a church, temple, or other religious buildings. Other synonyms for the word 'ostiary' include doorkeeper, gatekeeper, porter, watchman, and caretaker. Doorkeepers are responsible for ensuring only authorized people are allowed to enter religious facilities, while porters help in carrying goods and performing other helpful tasks. Temple caretakers are also responsible for ensuring the facility is kept clean and in good condition. In general, these synonyms refer to individuals who are tasked with protecting the entrance and maintaining order in religious settings or places of worship.