Reactivation refers to the process of restoring something to its former state of activity or functionality. There are many synonyms for reactivation, depending on the context in which the word is used. Some common synonyms include rejuvenation, revival, renewal, resuscitation, rekindling, and reanimation. These words all convey the idea of bringing something back to life or restoring it to its original state. Other synonyms for reactivation include reestablishment, resurgence, reawakening, and regeneration. These words are often used in reference to things like businesses, organizations, or economic systems, and they convey a sense of rebuilding or reinvigorating something that has been inactive or stagnant for a period of time.