The word "Shipman" is an old-fashioned term that typically referred to a seafarer or sailor. However, there are several synonyms that can be used to describe an individual who works on a ship. For instance, a mariner is an individual who navigates a ship, while a seaman is someone who works on the deck of a ship. Additionally, a sailor is someone who is skilled in handling a ship, while a navigator is responsible for plotting the course of a vessel. Other related terms include a skipper, a boatswain, and a helmsman. These synonyms demonstrate the variety of roles and skills required to operate a ship effectively.