How is the term 'stern' defined in relation to a ship?

The term "stern" refers specifically to the back section of a ship. This area is crucial to identifying the layout and structure of a vessel, as the stern typically houses important functions such as the propulsion machinery, steering gear, and often includes facilities for docking and mooring. Understanding terminology like "stern" is vital for effective communication regarding ship operations, navigation, and maintenance. The other options describe different parts or aspects of a ship's structure and do not accurately represent the meaning of "stern." Recognizing this distinction helps ensure clarity in discussions about ship design and operation.