A "place of business" refers to a physical location where an organization or individual carries out their commercial or professional activities, but there are many synonyms available for this term. You could use "workplace," which can be applied to offices, retail stores, and any physical location used for business purposes. Another synonym is "establishment," which refers to an institution or business venture that provides some type of service to the community. Other options include "premises," "company headquarters," or simply "office." These alternatives can be used interchangeably with "place of business," depending on the context or specific use case.