There are several synonyms for the phrase "releasing from prison" that can be used depending on the context. One is "parole," which refers to the early release of a prisoner who agrees to certain conditions and is supervised by a parole officer. Another is "commutation," which is a reduction in a prisoner's sentence by a government authority. "Pardon" is also an option, which is an official forgiveness and release from all punishment for a crime. Lastly, "exoneration" refers to the release of a prisoner who was wrongly convicted and cleared of all charges. Each of these synonyms carries its own legal and social implications and are used in various settings.