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.
The executive or policymaking officers of an organization.
An office to which members of the general public go when dealing with an organization.
The systems or divisions of an organization that deal with customer or public interactions and/or revenue generation.
Pertaining to the portion of a business or organization that deals with customers and revenue generation.