"Sailor boy" refers to a young man who works or serves on a ship or boat. There are several synonyms for this term, including seafarer, mariner, crewman, deckhand, and boater. Seafarers are experienced sailors, while mariners refer to professional sailors. Crewmen are members of the ship's crew, while deckhands perform manual labor tasks on board. Boaters typically refer to individuals who enjoy recreational boating and may not necessarily work on ships. These terms are often used interchangeably, but each one accurately describes a specific type of sailor boy and their role on a vessel.