What is a sailing vessel?

A sailing vessel is defined as a vessel that is primarily propelled by sails, utilizing the wind to generate the necessary power for movement. This means that the primary mode of propulsion is through the use of sails, rather than any mechanical means. The uniqueness of a sailing vessel lies in its ability to harness natural elements for navigation, which distinguishes it from other types of vessels.

For instance, vessels propelled by machinery rely entirely on engines or motors to move, which is not the characteristic of a sailing vessel. While the ability to carry passengers or engage in fishing activities may apply to some sailing vessels, these aspects do not define what constitutes a sailing vessel. The essence of the definition is fundamentally tied to its mode of propulsion, emphasizing that it is the sails and wind that drive the vessel forward. Therefore, the correct understanding aligns with the definition given in the answer, highlighting the sail as the primary source of propulsion.