To rehabilitate.
Rehabilitation, especially to treat the use of recreational drugs.
An institution for rehabilitation.
To restore to (a criminal etc.) the necessary training and education to allow for a successful reintegration into society; to retrain.
To restore or repair (a vehicle, building); to make habitable or usable again.
To restore (someone) to their former state, reputation, possessions, status etc.
To return (something) to its original condition.
To vindicate; to restore the reputation or image of (a person, concept etc.).
To return (someone) to good health after illness, addiction, etc.
To go through such a process; to recover.