Prison? What does prison mean?

The explanations of the two are as follows:

Prison: refers to the prison. It is a place where criminals are detained, educated and reformed according to law. It is an important part of state power and an institution that must be established to ensure the execution of punishment.

Prison: All criminals who have been sentenced to criminal detention, fixed-term imprisonment, life imprisonment or suspended execution of death penalty, and whose remaining sentence is more than three months, will be sent to prison for education and reform and participate in labor production. This is what people often call "going to jail".