city vs Guantanamo

city and Guantanamo both are nouns.

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

city (noun)	Guantanamo (noun)
people living in a large densely populated municipality	a city in southeastern Cuba; site of a United States naval base
a large and densely populated urban area; may include several independent administrative districts
an incorporated administrative district established by state charter