depend upon vs hinge on

depend upon and hinge on both are verbs.

Word	Noun	Adjective	Verb	Adverb
depend upon	No	No	Yes	No
hinge on	No	No	Yes	No

As verbs, depend upon and hinge on are synonyms defined as:

Other synonyms of depend upon include depend on, devolve on, hinge upon, ride, turn on.

depend upon (verb)	hinge on (verb)
be contingent on	be contingent on
put trust in with confidence