If a Roman Catholic or member of the Orthodox Church is excommunicated, it is publicly and officially stated that the person is no longer allowed to be a member of the Church. This is a punishment for some very great wrong that they have done.
Eventually, he was excommunicated along with his mentor. [be VERB-ed]
In 1766 he excommunicated the village for its 'depraved diversion'. [VERB noun]
Synonyms: expel, ban, remove, exclude