adj. Designed or fitted for execution, or carrying into effect.adj. Of, pertaining to, or having responsibility for the day-to-day running of an organisation, business, country, etc.; as, an executive act, an executive officer, executive government.n. A title of a chief officer or administrator, especially one who can make significant decisions on her/his own authority.n. That branch of government which is responsible for enforcing laws and judicial decisions, and for the day-to-day administration of the state.