nation vs political entity

nation and political entity both are nouns.

Word	Noun	Adjective	Verb	Adverb
nation	Yes	No	No	No
political entity	Yes	No	No	No

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

Other hypernyms of nation include political unit.

nation (noun)	political entity (noun)
a politically organized body of people under a single government	a unit with political responsibilities
the people who live in a nation or country
a federation of tribes (especially Native American tribes)