shore up vs hold up

shore up and hold up both are verbs.

Word	Noun	Adjective	Verb	Adverb
shore up	No	No	Yes	No
hold up	No	No	Yes	No

As verbs, hold up is a hypernym of shore up; that is, hold up is a word with a broader meaning than shore up:

Other hypernyms of shore up include hold, support, sustain.

shore up (verb)	hold up (verb)
support by placing against something solid or rigid	cause to be slowed down or delayed
	be the physical support of; carry the weight of
	hold up something as an example; hold up one's achievements for admiration
	rob at gunpoint or by means of some other threat
	continue to live and avoid dying
	resist or withstand wear, criticism, etc.
	resist or confront with resistance