Poenology is a term that is often used to refer to the study of punishment and rehabilitation of criminals. However, there are many synonyms that can be used to describe this field of study. One alternative word is criminology which also explores the nature, causes, and consequences of crimes. Other synonyms that can be used include penology, corrective justice, and criminal justice. These terms all describe the same general field of study, but they may have slightly different nuances or focuses. Overall, whether you use poenology or one of its synonyms, the study of crime and punishment is an important field that helps us understand the workings of our justice system.