corrosion vs erosion

corrosion and erosion both are nouns.

Word	Noun	Adjective	Verb	Adverb
corrosion	Yes	No	No	No
erosion	Yes	No	No	No

As nouns, corrosion and erosion are synonyms defined as:

Other synonyms of corrosion include corroding.

corrosion (noun)	erosion (noun)
erosion by chemical action	(geology) the mechanical process of wearing or grinding something down (as by particles washing over it), also figuratively
a state of deterioration in metals caused by oxidation or chemical action	erosion by chemical action
	a gradual decline of something
	condition in which the earth's surface is worn away by the action of water and wind