The term "restaurant owner" can be substituted with several synonyms. An individual who owns a restaurant can be referred to as a proprietor, an operator, or a manager. A restaurateur is also a fitting term, which tends to carry a more sophisticated and refined connotation. Other alternatives include "eatery owner," "diner proprietor," or simply "restaurant boss." Depending on the size of the establishment, the owner may also be called a CEO or president if they manage a chain. Regardless of the phrasing, the fundamental idea behind any synonym of "restaurant owner" is that they are responsible for running the establishment and ensuring that customers have an enjoyable dining experience.