a change made in something in order to make it right or better:
I just need to make a few corrections, and then we can send it to the printer.
2 [uncountable] spoken
used to say that what you have just said is wrong and you want to change it:
That will basically cover fifty...correction sixty percent of all charges.
the act of changing something in order to make it right or better:
Please hand in your papers for correction.
4 [uncountable] old-fashioned
punishment for people who have done something wrong or illegal