send vs route

send is not a noun while route is a noun.

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

As verbs, route is a hyponym of send; that is, route is a word with a more specific, narrower meaning than send:

Other hyponyms of send include cast, contrive, project, throw, turn, turn, divert, refer, airt, redirect, blow.

send (noun)	route (noun)
	an open way (generally public) for travel or transportation
	an established line of travel or access

send (verb)	route (verb)
cause to be directed or transmitted to another place	send via a specific route
transfer	divert in a specified direction
broadcast over the airwaves, as in radio or television	send documents or materials to appropriate destinations
assign to a station
to cause or order to be taken, directed, or transmitted to another place
transport commercially
cause to go somewhere
cause to be admitted; of persons to an institution