Small vessels are a type of watercraft that are typically smaller than other types of boats. Boats, which have five letters, are the most common type of small vessel and can range from recreational vessels to commercial vessels. Vials, also with five letters, are small containers used to store and transport liquids or powders. Skiffs, with six letters, are a type of boat that is usually propelled by oars or sails and is often used for fishing or recreation.