tributary vs secondary

tributary and secondary both are nouns.

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

tributary (noun)	secondary (noun)
a branch that flows into the main stream	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

tributary (adjective)	secondary (adjective)
tending to bring about; being partly responsible for	being of second rank or importance or value; not direct or immediate
paying tribute	depending on or incidental to what is original or primary
(of a stream) flowing into a larger stream	inferior in rank or status
	not of major importance
	belonging to a lower class or rank