country vs territorial division

country and territorial division both are nouns.

Word	Noun	Adjective	Verb	Adverb
country	Yes	No	No	No
territorial division	Yes	No	No	No

As nouns, territorial division is a hypernym of country; that is, territorial division is a word with a broader meaning than country:

Other hypernyms of country include administrative district, administrative division.

country (noun)	territorial division (noun)
a politically organized body of people under a single government	a district defined for administrative purposes
the people who live in a nation or country
the territory occupied by a nation
an area outside of cities and towns
a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography)