katholikon

Also known as sobor, catholikon

thumb|The at Zographou monastery on [[Mount Athos]] A or catholicon () or () refers to one of three things in the Eastern Orthodox Church: The cathedral of a diocese. The major church building (temple) of a monastery corresponding to a conventual church in Western Christianity. A large church in a city at which all the faithful of the city gather to celebrate certain important feasts rather than go to their local parish church.