ostiary

/ˈɑstiˌɛri/
noun
  1. A person who guards the entrance to a building, especially a church; a doorkeeper or porter.
    • The old hotel still employed an ostiary to open the front door for guests.
    • In medieval times, the ostiary was responsible for keeping unwanted people out of the monastery.
    • The ostiary greeted visitors at the cathedral's main door.
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