third estate n the third order or class in a country or society divided into estates, esp. for representation in a parliament; the commons, townsmen, or middle class English Collins Dictionary - English Definition & Thesaurus
DEFINITION of 'C-Suite'. A widely-used slang term used to collectively refer to a corporation's most important senior executives. C-Suite gets its name because top senior executives' titles tend to start with the letter C, for chief, as in chief executive officer, chief operating officer and chief information officer.
A three-tier organizational structure is more of a flat structure, but not as flat as they come. Some flat organizations place a broad executive management level just above the staff level.his encourages a staff employee to innovate to solve problems. In a three-tier structure, staff and managers work together to overcome obstacles in the local business, with the authority to do so granted by the executive level.