An aircraft carrier is a large WARSHIP that is used to transport and launch aircraft. It is typically equipped with a flight deck, an area from which aircraft can take off and land. Aircraft carriers are also equipped with a variety of weapons and defensive systems. The term 'SHIP' is used to refer to the vessel itself, while 'WARSHIP' is used to refer to the vessel's military capabilities. STOL stands for Short Takeoff and Landing, and is a type of aircraft that is capable of taking off and landing in a short distance. FTOP stands for Flat Top, and is a type of aircraft carrier that has a flat flight deck. FLATTOP is another term for a Flat Top aircraft carrier.