scouring vs scour

scouring and scour both are nouns.

Word	Noun	Adjective	Verb	Adverb
scouring	Yes	No	No	No
scour	Yes	No	Yes	No

scouring (noun)	scour (noun)
the act of cleaning a surface by rubbing it with a brush and soap and water	a place that is scoured (especially by running water)
moving over territory to search for something

scouring (verb)	scour (verb)
	rinse, clean, or empty with a liquid
	rub hard or scrub
	clean with hard rubbing
	examine minutely