on-line vs transportation

on-line is not a noun while transportation is a noun.

Word	Noun	Adjective	Verb	Adverb
on-line	No	Yes	No	No
transportation	Yes	No	No	No

on-line (noun)	transportation (noun)
	the act of moving something from one location to another
	the commercial enterprise of moving goods and materials
	the act of expelling a person from their native land
	a facility consisting of the means and equipment necessary for the movement of passengers or goods
	the sum charged for riding in a public conveyance

on-line (adjective)	transportation (adjective)
connected to a computer network or accessible by computer
on a regular route of a railroad or bus or airline system
being in progress now