bus route vs route

bus route and route both are nouns.

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

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

Other hypernyms of bus route include itinerary, path.

bus route (noun)	route (noun)
the route regularly followed by a passenger bus	an open way (generally public) for travel or transportation
	an established line of travel or access

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