Synonyms for 'second chance' include do-over, mulligan, reprieve, new lease on life, and another bite at the apple. These words all refer to an opportunity to start anew or try again after experiencing a setback or failure. They suggest a fresh start or a chance to make things right. Other related phrases include get a fresh start and make a comeback. All of these words and phrases are used to describe a situation in which a person or thing is given a fresh opportunity to succeed.