A chief officer or administrator, especially one who can make significant decisions on their own authority.
The branch of government that is responsible for enforcing laws and judicial decisions, and for the day-to-day administration of the state.
A process that coordinates and governs the action of other processes or threads; supervisor.
Designed or fitted for execution, or carrying into effect.
Of, pertaining to, or having responsibility for the day-to-day running of an organisation, business, country, etc.
Exclusive.