To improve in accuracy, delicacy, or excellence.
To become pure; to be cleared of impure matter.
To purify of coarseness, vulgarity, inelegance, etc.; to polish.
To make nice or subtle.
To purify; reduce to a fine, unmixed, or pure state; to free from impurities.
To redo, correct, or rebuild.
Taking unsaleable food and using it in the manufacture of other food.
Work done to correct defects associated with a deliverable product, plus any root cause analysis effort to identify the task(s) to be re-performed.
An instance of reworking.
The act of redoing, correcting, or rebuilding.
Something redone, corrected or rebuilt.