erasure vs correction

erasure and correction both are nouns.

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

As nouns, correction is a hypernym of erasure; that is, correction is a word with a broader meaning than erasure:

erasure (noun)	correction (noun)
deletion by an act of expunging or erasing	the act of offering an improvement to replace a mistake; setting right
a correction made by erasing	treatment of a specific defect
a surface area where something has been erased	the act of disciplining
	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