city vs 's Gravenhage

city and 's Gravenhage both are nouns.

Word	Noun	Adjective	Verb	Adverb
city	Yes	No	No	No
's Gravenhage	Yes	No	No	No

city (noun)	's Gravenhage (noun)
people living in a large densely populated municipality	the site of the royal residence and the de facto capital in the western part of the Netherlands; seat of the International Court of Justice
a large and densely populated urban area; may include several independent administrative districts
an incorporated administrative district established by state charter