An owner. / A sole owner of an unincorporated business, also called a sole proprietor. / One of the owners of an unincorporated business, a partner.

plural of proprietor

plural of sole proprietor

(law, business) The person who owns and controls a sole proprietorship.

plural of proprietorship

plural of sole proprietorship

Alternative form of proprietary

Of or pertaining to ownership. / Characteristic of or behaving like a proprietor or owner (of a thing); possessive.

The state of being a proprietor; ownership

(law, business) A business that is wholly owned by a single person, who has unlimited liability.