walkabout vs tour

walkabout and tour both are nouns.

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

As nouns, tour is a hypernym of walkabout; that is, tour is a word with a broader meaning than walkabout:

Other hypernyms of walkabout include circuit.

walkabout (noun)	tour (noun)
nomadic excursions into the bush made by an Aborigine	a journey or route all the way around a particular place or area
a public stroll by a celebrity to meet people informally	a time period for working (after which you will be relieved by someone else)
a walking trip or tour	a period of time spent in military service

walkabout (verb)	tour (verb)
	make a tour of a certain place