Definicija: In the case of a company or limited liability partnership, it means a name that is not its registered name. In the case of a sole trader, it means a name other than a surname with or without forenames or initials.

Definicija: operating name of a company, as opposed to the legal name of the company

Definicija: The registration of an assumed, fictitious, or trade name under which a business operates, which must be included on U.S. tax reports. In the U.S., any business that operates under a name other than a personal or corporate legal name must register a DBA name with the appropriate government agency.