first officer (English, noun)
expansion: first officer (plural first officers)
Senses:
glosses: The copilot of an aircraft.
glosses: The chief mate of a merchant ship.
glosses: The executive officer, second in command of a naval vessel.
glosses: 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.
glosses: Air Transport Auxiliary rank corresponding to Flight Lieutenant in the Royal Air Force.
glosses: Women's Royal Naval Service rank corresponding to Lieutenant-Commander in the Royal Navy.
Forms:
form: first officers
tags: plural