detour vs route

detour and route both are nouns.

Word	Noun	Adjective	Verb	Adverb
detour	Yes	No	Yes	No
route	Yes	No	Yes	No

As nouns, route is a hypernym of detour; that is, route is a word with a broader meaning than detour:

detour: a roundabout road (especially one that is used temporarily while a main route is blocked)
route: an open way (generally public) for travel or transportation

Other hypernyms of detour include road.

detour (noun)	route (noun)
a roundabout road (especially one that is used temporarily while a main route is blocked)	an open way (generally public) for travel or transportation
	an established line of travel or access

detour (verb)	route (verb)
travel via a detour	send via a specific route
	divert in a specified direction
	send documents or materials to appropriate destinations