country vs Australia

country and Australia both are nouns.

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

country (noun)	Australia (noun)
a politically organized body of people under a single government	a nation occupying the whole of the Australian continent; Aboriginal tribes are thought to have migrated from southeastern Asia 20,000 years ago; first Europeans were British convicts sent there as a penal colony
the people who live in a nation or country	the smallest continent; between the South Pacific and the Indian Ocean
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)