city vs Newcastle-upon-Tyne

city and Newcastle-upon-Tyne both are nouns.

Word	Noun	Adjective	Verb	Adverb
city	Yes	No	No	No
Newcastle-upon-Tyne	Yes	No	No	No

city (noun)	Newcastle-upon-Tyne (noun)
people living in a large densely populated municipality	a port city in northeastern England on the River Tyne; a center for coal exports (giving rise to the expression `carry coals to Newcastle' meaning to do something unnecessary)
a large and densely populated urban area; may include several independent administrative districts
an incorporated administrative district established by state charter