shore up vs prop up

shore up and prop up both are verbs.

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

As verbs, shore up and prop up are synonyms defined as:

shore up and prop up: support by placing against something solid or rigid

Other synonyms of shore up include prop, shore.

shore up (verb)	prop up (verb)
support by placing against something solid or rigid	support by placing against something solid or rigid