city vs Tacoma

city and Tacoma both are nouns.

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

city (noun)	Tacoma (noun)
people living in a large densely populated municipality	a city in west central Washington on an arm of Puget Sound to the south of Seattle
a large and densely populated urban area; may include several independent administrative districts
an incorporated administrative district established by state charter