indirect vs secondary

indirect is not a noun while secondary is a noun.

Word	Noun	Adjective	Verb	Adverb
indirect	No	Yes	No	No
secondary	Yes	Yes	No	No

indirect (noun)	secondary (noun)
	coil such that current is induced in it by passing a current through the primary coil
	the defensive football players who line up behind the linemen

indirect (adjective)	secondary (adjective)
not direct in spatial dimension; not leading by a straight line or course to a destination	being of second rank or importance or value; not direct or immediate
extended senses; not direct in manner or language or behavior or action	depending on or incidental to what is original or primary
descended from a common ancestor but through different lines	inferior in rank or status
having intervening factors or persons or influences	not of major importance
not as a direct effect or consequence	belonging to a lower class or rank