10 letters · 14 points in Scrabble
noun the act of offering an improvement to replace a mistake; setting right
noun a quantity that is added or subtracted in order to increase the accuracy of a scientific measure
noun something substituted for an error
originFrom Middle English correccioun, correction, from Old French correccion (French correction), from Latin corrēctiō. Doublet of correctio.
Etymology from Wiktionary, CC BY-SA 3.0