centrism vs political theory

centrism and political theory both are nouns.

Word	Noun	Adjective	Verb	Adverb
centrism	Yes	No	No	No
political theory	Yes	No	No	No

As nouns, political theory is a hypernym of centrism; that is, political theory is a word with a broader meaning than centrism:

centrism: a political philosophy of avoiding the extremes of left and right by taking a moderate position or course of action
political theory: an orientation that characterizes the thinking of a group or nation

Other hypernyms of centrism include ideology, political orientation.

centrism (noun)	political theory (noun)
a political philosophy of avoiding the extremes of left and right by taking a moderate position or course of action	an orientation that characterizes the thinking of a group or nation