political science vs governance

political science and governance both are nouns.

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

political science (noun)	governance (noun)
the study of government of states and other political units	the act of governing; exercising authority
	the persons (or committees or departments etc.) who make up a body for the purpose of administering something