The word "refreshen" means to freshen up or revitalize something. However, there are several synonyms for this word that can be used interchangeably in different contexts. One such synonym is rejuvenate, which means to restore or renew something to its former glory. Another synonym is invigorate, which means to give life or energy to something. Revive is another synonym and means to bring something back to life or health. Another word is renew, which means to add new life to something. In conclusion, there are various synonyms for the word "refreshen" that can be utilized based on the given context.