The word "reemerged" is commonly used to describe something that has resurfaced after disappearing or being absent for a period of time. Some synonyms for the word include "reappeared," "returned," "reinstated," "reestablished," "restored," "revived," "resurrected," and "reborn." Each of these words carries a slightly different connotation, with "reappeared" being the most neutral and "reborn" suggesting a more drastic transformation or rebirth. Choosing the most appropriate synonym will depend on the context of the sentence and the desired tone or emphasis.