Select the most appropriate one-word substitution for the given group of words. 

An action of making amends for a wrong or injury.

Atonement

The most appropriate one-word substitution for an action of making amends for a wrong or injury is atonement.

• Dilution is the process of making something less concentrated by adding water or another solvent.
• Pilferage is the act of stealing something small or insignificant.
• Oculist is a doctor who specializes in the eyes.

The word atonement is derived from the Old English words at-, meaning "to" or "towards", and onetan, meaning "to make amends". It is the act of making amends for a wrong or injury, usually by offering some form of sacrifice or restitution. Atonement can be made to a person, to a group of people, or to a higher power.