bishop vs Church of Rome

bishop and Church of Rome both are nouns.

Word	Noun	Adjective	Verb	Adverb
bishop	Yes	No	No	No
Church of Rome	Yes	No	No	No

bishop (noun)	Church of Rome (noun)
(chess) a piece that can be moved diagonally over unoccupied squares of the same color	the Christian Church based in the Vatican and presided over by a pope and an episcopal hierarchy
port wine mulled with oranges and cloves
a senior member of the Christian clergy having spiritual and administrative authority; appointed in Christian churches to oversee priests or ministers; considered in some churches to be successors of the twelve Apostles of Christ