Columbia vs Washington

Columbia and Washington both are nouns.

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

Columbia (noun)	Washington (noun)
a university in New York City	the federal government of the United States
capital and largest city in South Carolina; located in central South Carolina	a state in northwestern United States on the Pacific with capital Olympia
a university town in central Missouri	the capital of the United States in the District of Columbia and a tourist mecca; George Washington commissioned Charles L'Enfant to lay out the city in 1791
a town in west central Tennessee	1st President of the United States; commander-in-chief of the Continental Army during the American Revolution (1732-1799)
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	United States educator who was born a slave but became educated and founded a college at Tuskegee in Alabama (1856-1915)