scour vs scouring

scour and scouring both are nouns.

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

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

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