An official in charge of a government department, especially a police force.
Someone commissioned to perform certain duties.
A member of a commission.
Someone who commissions something.
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.
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 executive officer, second in command of a naval vessel.