The act or process of administering, especially the management of a government or large institution. The activity of a government or state in the exercise of its powers and duties. often The executive branch of a government. The group of people who manage or direct an institution, especially a school or college. The term of office of an executive officer or body. Law Management of a trust or estate. The dispensing, applying, or tendering of something, such as an oath, a sacrament, or medicine.