Free from error; true; accurate.
With good manners; well behaved; conforming with accepted standards of behaviour.
A correct response.
Used to indicate acknowledgement or acceptance.
To make something that was wrong become right; to remove error from.
To discipline; to punish.
To inform (someone) of their error.
To grade (examination papers).
Not good, unreliable.
Not whole, not solid, defective.
Infirm, diseased.