archpriest       
noun [ C ] uk/ˌɑːtʃˈpriːst/ us/ˌɑːrtʃˈpriːst/
 (尤指某些罗马天主教会的)主助祭,副主教
a high-ranking priest, especially in some Roman Catholic churches
  He was recently appointed archpriest of Santa Maria Maggiore in Rome.  他近期被任命为罗马圣母大殿的主助祭。 
 an archpriest of the Russian Orthodox church  俄罗斯东正教会的一名副主教 
 - More examples
 - He was ordained priest by the head of the mission, being later raised to archpriest.
 - Rev. Michael Oleksa, archpriest at St. Alexis in Anchorage and the best-known Orthodox pastor in Alaska
 - Archpriest John Joseph Mowatt