turn on vs hinge upon

turn on and hinge upon both are verbs.

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

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

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

turn on (verb)	hinge upon (verb)
become hostile towards	be contingent on
get high, stoned, or drugged
cause to operate by flipping a switch
to evoke sexual feelings
cause to be agitated, excited, or roused
produce suddenly or automatically
be contingent on