The executive officer, second in command of a naval vessel.
Air Transport Auxiliary rank corresponding to Flight Lieutenant in the Royal Air Force.
Women's Royal Naval Service rank corresponding to Lieutenant-Commander in the Royal Navy.
The copilot of an aircraft.
The chief mate of a merchant ship.
The most senior civil servant in the United States Foreign Service, with responsibility for running an embassy under the authority of and reporting to the ambassador.
An officer of the military police, particularly provost marshal or provost sergeant.
The head of various other ecclesiastical bodies, even (rare, obsolete) muezzins.
A dean: the head of a cathedral chapter.
A mayor: the chief magistrate of a town, particularly (Scotland) the head of a burgh or (historical) the former chiefs of various towns in France, Flanders, or (by extension) other Continental European countries.
A steward or seneschal: a medieval agent given management of a feudal estate or charged with collecting fees; (obsolete, sometimes as ~ of Paradise or ~ of Heaven) a title of the archangel Michael.
The head of various colleges and universities.
Any manager or overseer in a medieval or early modern context.
The minister of the chief Protestant church of a town or region in Germany, the Low Countries, and Scandinavia.
A constable: a medieval or early modern official charged with arresting, holding, and punishing criminals.
An assistant fencing master.
A senior deputy administrator; a vice-president of academic affairs.
A prior: an abbot's second-in-command.