To remedy or fix (an undesirable state of affairs, situation etc.).
To adjust (a globe or sundial) to prepare for the solution of a proposed problem.
To restore (someone or something) to its proper condition; to straighten out, to set right.
To determine the length of a curve included between two limits.
To purify or refine (a substance) by distillation.
To produce (as factitious gin or brandy) by redistilling bad wines or strong spirits (whisky, rum, etc.) with flavourings.
To convert (alternating current) into direct current.
To correct or amend (a mistake, defect etc.).
To rescue a person or situation from imminent danger or major failure.