A ship is a large, buoyant watercraft designed for navigating open
bodies of water like oceans or seas. Ships are typically larger than
  boats and serve various purposes, including transporting cargo,
  passengers, and for specialized missions like naval operations,
  research, or fishing. They are a crucial part of global trade, responsible
  for carrying the majority of international cargo.
  This video explains the basics of ship parts and terminology:
  Key characteristics and types of ships:
 Size and Capacity:
  Ships are defined by their large size and significant load-carrying capacity,
  distinguishing them from smaller boats.
 Navigation:
  Ships can be propelled by various means, including wind power (sailing ships),
  steam engines, diesel engines, and more recently, nuclear power.
 Cargo Ships:
  These vessels are designed to transport goods and materials across the
  globe. They include tankers for liquids, bulk carriers for dry goods, and
  container ships for standardized containers.
 Passenger Ships:
  Cruise ships and ferries are examples of passenger ships, providing
  transportation and leisure experiences for travelers.
 Warships:
  These ships are designed for naval warfare and defense purposes.
 Specialized Ships:
  Research vessels, fishing trawlers, and other specialized ships serve unique
  purposes in various industries.
  This video explains the difference between a ship and a boat: