scratching vs scrape

scratching and scrape both are nouns.

Word	Noun	Adjective	Verb	Adverb
scratching	Yes	No	No	No
scrape	Yes	No	Yes	No

As nouns, scratching and scrape are synonyms defined as:

Other synonyms of scratching include scraping, scratch.

scratching (noun)	scrape (noun)
a harsh noise made by scraping	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

scratching (verb)	scrape (verb)
	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