erosion vs corrosion

erosion and corrosion both are nouns.

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

As nouns, erosion and corrosion are synonyms defined as:

Other synonyms of erosion include corroding.

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