build upon vs hinge upon

build upon and hinge upon both are verbs.

Word	Noun	Adjective	Verb	Adverb
build upon	No	No	Yes	No
hinge upon	No	No	Yes	No

As verbs, hinge upon is a hypernym of build upon; that is, hinge upon is a word with a broader meaning than build upon:

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

build upon (verb)	hinge upon (verb)
use as a basis for theories and claims	be contingent on