country vs estate of the realm

country and estate of the realm both are nouns.

Word	Noun	Adjective	Verb	Adverb
country	Yes	No	No	No
estate of the realm	Yes	No	No	No

country (noun)	estate of the realm (noun)
a politically organized body of people under a single government	a major social class or order of persons regarded collectively as part of the body politic of the country (especially in the United Kingdom) and formerly possessing distinct political rights
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)