supply line vs route

supply line and route both are nouns.

Word	Noun	Adjective	Verb	Adverb
supply line	Yes	No	No	No
route	Yes	No	Yes	No

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

Other hypernyms of supply line include itinerary, path.

supply line (noun)	route (noun)
a route over which supplies can be delivered	an open way (generally public) for travel or transportation
	an established line of travel or access

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