town vs Columbia

town and Columbia both are nouns.

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

town (noun)	Columbia (noun)
the people living in a municipality smaller than a city	a university in New York City
an urban area with a fixed boundary that is smaller than a city	capital and largest city in South Carolina; located in central South Carolina
an administrative division of a county	a university town in central Missouri
	a town in west central Tennessee
	a North American river; rises in southwestern Canada and flows southward across Washington to form the border between Washington and Oregon before emptying into the Pacific; known for its salmon runs in the spring