Santa Ana vs metropolis

Santa Ana and metropolis both are nouns.

Word	Noun	Adjective	Verb	Adverb
Santa Ana	Yes	No	No	No
metropolis	Yes	No	No	No

Santa Ana (noun)	metropolis (noun)
a city in southern California to the east of Long Beach	people living in a large densely populated municipality
a city in western El Salvador	a large and densely populated urban area; may include several independent administrative districts
Mexican general who tried to crush the Texas revolt and who lost battles to Winfield Scott and Zachary Taylor in the Mexican War (1795-1876)
a strong hot dry wind that blows in winter from the deserts of southern California toward the Pacific Coast