Synonyms for Correction (same or very similar meaning)
WordNet sense 1 (a quantity that is added or subtracted in order to increase the accuracy of a scientific measure):
fudge factor
WordNet sense 2 (a rebuke for making a mistake):
chastisement, chastening
WordNet sense 3 (the act of punishing):
discipline
WordNet sense 4 (the act of offering an improvement to replace a mistake; setting right):
rectification
From the ODE community, based on WordNet
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