A passenger ship is a type of vessel that is designed to transport passengers and cargo from one place to another. The two most common types of passenger ships are liners and ferries. A LINER is a large, ocean-going vessel that is used for long-distance travel, while a FERRY is a smaller vessel that is used for short-distance trips, usually across bodies of water. Both liners and ferries can accommodate passengers and cargo, but the size and design of each type of vessel differs.