country vs geographic region

country and geographic region both are nouns.

Word	Noun	Adjective	Verb	Adverb
country	Yes	No	No	No
geographic region	Yes	No	No	No

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

Other hypernyms of country include geographic area, geographical area, geographical region.

country (noun)	geographic region (noun)
a politically organized body of people under a single government	a demarcated area of the Earth
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)