enlistment vs tour

enlistment and tour both are nouns.

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

As nouns, enlistment and tour are synonyms defined as:

Other synonyms of enlistment include duty tour, hitch, term of enlistment, tour of duty.

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

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