tourist vs tour

tourist and tour both are nouns.

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

tourist (noun)	tour (noun)
someone who travels for pleasure	a journey or route all the way around a particular place or area
	a time period for working (after which you will be relieved by someone else)
	a period of time spent in military service

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