scratch up vs scrape

scratch up is not a noun while scrape is a noun.

Word	Noun	Adjective	Verb	Adverb
scratch up	No	No	Yes	No
scrape	Yes	No	Yes	No

As verbs, scratch up and scrape are synonyms defined as:

Other synonyms of scratch up include scratch.

scratch up (noun)	scrape (noun)
	an indication of damage
	a deep bow with the foot drawn backwards (indicating excessive humility)
	a harsh noise made by scraping
	an abraded area where the skin is torn or worn off

scratch up (verb)	scrape (verb)
cut the surface of; wear away the surface of	scratch repeatedly
	bruise, cut, or injure the skin or the surface of
	cut the surface of; wear away the surface of
	gather (money or other resources) together over time
	make by scraping
	bend the knees and bow in a servile manner