Taiyuan vs city

Taiyuan and city both are nouns.

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

Taiyuan (noun)	city (noun)
an ancient city in northeastern China noted for coal mining and steel production	people living in a large densely populated municipality
	a large and densely populated urban area; may include several independent administrative districts
	an incorporated administrative district established by state charter