👉 Underseaman is a person who works as an officer or crewmember on board ships, submarines, and other vessels. They are responsible for maintaining safety, ensuring that the vessel stays in good condition, and handling any emergencies that may occur while underway. The term was originally used to describe sailors who were not fully trained or experienced at the time of their service. In modern times, it is more commonly used as a general term for crew members who have been assigned to work on board ships, submarines