political science vs independent

political science and independent both are nouns.

Word	Noun	Adjective	Verb	Adverb
political science	Yes	No	No	No
independent	Yes	Yes	No	No

political science (noun)	independent (noun)
the study of government of states and other political units	a writer or artist who sells services to different employers without a long-term contract with any of them
	a neutral or uncommitted person (especially in politics)

political science (adjective)	independent (adjective)
	free from external control and constraint
	(of a clause) capable of standing syntactically alone as a complete sentence
	(of political bodies) not controlled by outside forces
	not controlled by a party or interest group