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.
C-level, also called the C-suite, is an adjective used to describe high-ranking executive titles within an organization. C, in this context, stands for chief. Officers who hold C-level positions are typically considered the most powerful and influential members of an organization; consequently, they make higher-stakes decisions, their workload is more demanding, and they have relatively high salaries. Download this free guide.