A sailor is a person who works on a ship or boat, often involved in navigating and operating the vessel. Sailors can be found in various roles, including deckhands, officers, and engineers, depending on their skills and training. They are essential for the safe and efficient movement of goods and people across oceans and waterways. Sailors typically undergo training to learn about maritime safety, navigation, and ship maintenance. Many sailors work for commercial shipping companies, while others may serve in the military, such as the Navy. Their work can be demanding, requiring long hours at sea and the ability to adapt to changing weather conditions.