town vs Hippo Regius

town and Hippo Regius both are nouns.

Word	Noun	Adjective	Verb	Adverb
town	Yes	No	No	No
Hippo Regius	Yes	No	No	No

town (noun)	Hippo Regius (noun)
the people living in a municipality smaller than a city	an ancient Numidian town in northwestern Africa adjoining present-day Annaba in northeastern Algeria
an urban area with a fixed boundary that is smaller than a city
an administrative division of a county