town vs Nogales

town and Nogales both are nouns.

Word	Noun	Adjective	Verb	Adverb
town	Yes	No	No	No
Nogales	Yes	No	No	No

town (noun)	Nogales (noun)
the people living in a municipality smaller than a city	a town in Arizona on the Mexican border opposite Nogales, Mexico
an urban area with a fixed boundary that is smaller than a city	a town in northern Mexico on the border of Arizona
an administrative division of a county