Midshipman
A midshipman is an officer cadet, or a commissioned officer. They are the lowest rank of officer in the Royal Navy, United States Navy, and many Commonwealth navies. Commonwealth countries which use this rank are Australia, New Zealand, South Africa, Pakistan, India, Singapore, Sri Lanka and Kenya. Before 1968, it was used by the Royal Canadian Navy. But it was replaced with that of naval cadet upon the making of the Canadian Forces.