monarchism vs political theory

monarchism and political theory both are nouns.

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

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

monarchism: a belief in and advocacy of monarchy as a political system
political theory: an orientation that characterizes the thinking of a group or nation

Other hypernyms of monarchism include ideology, political orientation.

monarchism (noun)	political theory (noun)
a belief in and advocacy of monarchy as a political system	an orientation that characterizes the thinking of a group or nation