The head of a department.

Roget 737a: government, legal authority, soveriegn, sovereign authority; authority etc. 737; master etc. 745; direction etc. 693.    [nations] national government, nation, state, country, nation-state, dominion, republic, empire, union, democratic republic; kingdom, principality.    [subdivisions of nations] state government [Lat.], state; shire [Brit.]; province [Can.]; county [Ire.]; canton [Switz.]; territory [Austral.]; duchy, archduchy, archdukedom^†; woiwodshaft; commonwealth; region etc. 181; property etc. 780.    [smaller subdivisions] county, parish city, domain, tract, arrondissement [Fr.], mofussil^†, commune; wappentake, hundred, riding, lathe, garth^†, soke^†, tithing; ward, precinct, bailiwick.    command, empire, sway, rule; dominion, domination; sovereignty, supremacy, suzerainty; lordship, headship^†; chiefdom^†; seigniory, seigniority^†.    rule, sway, command, control, administer; govern etc. (direct) 693; lead, preside over, reign, possess the throne, be seated on the throne, occupy the throne; sway the scepter, wield the scepter; wear the crown.    state, realm, body politic, posse comitatus [Lat.].    [person in the governing authority] judicature etc. 965; cabinet etc. (council) 696; seat of government, seat of authority; headquarters.    [Acquisition of authority] accession; installation etc. 755; politics etc. 737.1. reign, regime, dynasty; directorship, dictatorship; protectorate, protectorship; caliphate, pashalic^†, electorate; presidency, presidentship^†; administration; proconsul, consulship; prefecture; seneschalship; magistrature^†, magistracy.    monarchy; kinghood^†, kingship; royalty, regality; aristarchy^†, aristocracy; oligarchy, democracy, theocracy, demagogy; commonwealth; dominion; heteronomy; republic, republicanism; socialism; collectivism; mob law, mobocracy^†, ochlocracy^†; vox populi, imperium in imperio [Lat.]; bureaucracy; beadledom^†, bumbledom^†; stratocracy; military power, military government, junta; feodality^†, feudal system, feudalism.    thearchy^†, theocracy, dinarchy^†; duarchy^†, triarchy, heterarchy^†; duumvirate; triumvirate; autocracy, autonomy; limited monarchy; constitutional government, constitutional monarchy; home rule; representative government; monocracy^†, pantisocracy^†.    gynarchy^†, gynocracy^†, gynaeocracy^†; petticoat government.    [government functions] legislature, judiciary, administration.    [Government agencies and institutions] office of the president, office of the prime minister, cabinet; senate, house of representatives, parliament; council etc. 696; courts, supreme court; [U.S. national government departments], state, interior, labor, health and human services, defense, education, agriculture, justice, commerce, treasury; Federal Bureau of Investigation, FBI; Central Intelligence Agency, CIA; National Institutes of Health, NIH; Postal Service, Post Office; Federal Aviation Administration, FAA.    [national government officials] president, vice president, cabinet member, prime minister, minister; senator, representatative, president pro tem [Lat.], speaker of the house; department head, section head, section chief; federal judge, justice, justice of the supreme court, chief justice; treasurer, secretary of the treasury; director of the FBI.    [state government officials] governor, state cabinet member; state senator, assemblyman, assemblywoman.    ... show more