city vs Vancouver

city and Vancouver both are nouns.

Word	Noun	Adjective	Verb	Adverb
city	Yes	No	No	No
Vancouver	Yes	No	No	No

city (noun)	Vancouver (noun)
people living in a large densely populated municipality	a port city in southwestern British Columbia on an arm of the Pacific Ocean opposite Vancouver Island; Canada's chief Pacific port and third largest city
a large and densely populated urban area; may include several independent administrative districts	a town in southwestern Washington on the Columbia River across from Portland, Oregon
an incorporated administrative district established by state charter	English navigator remembered for his exploration of the Pacific coast of North America (1757-1798)