The quarterdeck is a raised deck behind the main mast of a sailing ship. Traditionally it was where the captain commanded his vessel and where the ship`s colours were kept. This led to it being used as the main ceremonial and reception area on board, and the word is still used to refer to such an area on a ship or even in naval establishments on .... Found on http://en.wikipedia.org/wiki/Quarterdeck
(from the article `castle`) ...for the area around the foremast in 19th-century men-of-war, although the deck was flush from bow to stern. Many cargo vessels have a forecastle ... Found on http://www.britannica.com/eb/a-z/q/4
highest deck at the rear of the ship, ship's officers would often stand on the quarterdeck to oversee the ship's operation Found on http://www.encyclo.co.uk/local/22083