domain vs country

domain and country both are nouns.

Word	Noun	Adjective	Verb	Adverb
domain	Yes	No	No	No
country	Yes	No	No	No

domain (noun)	country (noun)
the content of a particular field of knowledge	a politically organized body of people under a single government
people in general; especially a distinctive group of people with some shared interest	the people who live in a nation or country
(mathematics) the set of values of the independent variable for which a function is defined	the territory occupied by a nation
territory over which rule or control is exercised	an area outside of cities and towns
a particular environment or walk of life	a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography)