city vs Tuxtla Gutierrez

city and Tuxtla Gutierrez both are nouns.

Word	Noun	Adjective	Verb	Adverb
city	Yes	No	No	No
Tuxtla Gutierrez	Yes	No	No	No

city (noun)	Tuxtla Gutierrez (noun)
people living in a large densely populated municipality	a city in southeastern Mexico
a large and densely populated urban area; may include several independent administrative districts
an incorporated administrative district established by state charter