who is a proprietor
Someone who owns a business or a property is a proprietor. A bookstore proprietor might wish she became a librarian instead so the books would come back. The first part of proprietor sounds a lot like property, and a proprietor is someone with ownership of property. Sometimes a proprietor oversees the business, such as a restaurant proprietor who is also a chef or hostess, and other times a proprietor owns many businesses and has different people running them.