correction vs erasure

correction and erasure both are nouns.

Word	Noun	Adjective	Verb	Adverb
correction	Yes	No	No	No
erasure	Yes	No	No	No

As nouns, erasure is a hyponym of correction; that is, erasure is a word with a more specific, narrower meaning than correction:

correction (noun)	erasure (noun)
the act of offering an improvement to replace a mistake; setting right	deletion by an act of expunging or erasing
treatment of a specific defect	a correction made by erasing
the act of disciplining	a surface area where something has been erased
a drop in stock market activity or stock prices following a period of increases
a rebuke for making a mistake
something substituted for an error
a quantity that is added or subtracted in order to increase the accuracy of a scientific measure