The term 'LARGE BOAT' can be broken down into two crossword solutions: SHIP (4 letters). A SHIP is a large boat used for transporting goods and people across bodies of water. It is typically much larger than other types of boats, such as yachts or dinghies. Ships are often used for commercial purposes, such as cargo transport, fishing, and passenger transport. They can also be used for recreational purposes, such as sailing and cruising.