contingent upon vs contingent

contingent upon is not a noun while contingent is a noun.

Word	Noun	Adjective	Verb	Adverb
contingent upon	No	Yes	No	No
contingent	Yes	Yes	No	No

As adjectives, contingent upon and contingent are synonyms defined as:

contingent upon and contingent: being determined by conditions or circumstances that follow

Other synonyms of contingent upon include contingent on, dependant on, dependant upon, dependent on, dependent upon, depending on.

contingent upon (noun)	contingent (noun)
	a temporary military unit
	a gathering of persons representative of some larger group

contingent upon (adjective)	contingent (adjective)
being determined by conditions or circumstances that follow	being determined by conditions or circumstances that follow
	possible but not certain to occur
	uncertain because of uncontrollable circumstances