Northwest Passage vs route

Northwest Passage and route both are nouns.

Word	Noun	Adjective	Verb	Adverb
Northwest Passage	Yes	No	No	No
route	Yes	No	Yes	No

Northwest Passage (noun)	route (noun)
a water route between the Atlantic Ocean and the Pacific Ocean along the northern coast of North America; Europeans since the 16th century had searched for a short route to the Far East before it was successfully traversed by Roald Amundsen (1903-1906)	an open way (generally public) for travel or transportation
	an established line of travel or access

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