Australia vs walkabout

Australia and walkabout both are nouns.

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

Australia (noun)	walkabout (noun)
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	nomadic excursions into the bush made by an Aborigine
the smallest continent; between the South Pacific and the Indian Ocean	a public stroll by a celebrity to meet people informally
	a walking trip or tour