superpower vs body politic

superpower and body politic both are nouns.

Word	Noun	Adjective	Verb	Adverb
superpower	Yes	No	No	No
body politic	Yes	No	No	No

As nouns, body politic is a hypernym of superpower; that is, body politic is a word with a broader meaning than superpower:

superpower: a state powerful enough to influence events throughout the world
body politic: a politically organized body of people under a single government

Other hypernyms of superpower include commonwealth, country, land, nation, res publica, state.

superpower (noun)	body politic (noun)
a state powerful enough to influence events throughout the world	a politically organized body of people under a single government