Shipyard
A shipyard (also called a dockyard) is a place where ships are built and repaired. These can be yachts, military vessels, cruise liners or other cargo or passenger ships. Dockyards are sometimes more associated with maintenance and basing activities than shipyards, which are sometimes associated more with initial construction. The terms are routinely used interchangeably, in part because the evolution of dockyards and shipyards has often caused them to change or merge roles.
Admiralty Shipyard
In the 19th century it was a major builder of battleships and submarines and cruisers in the 20th. Since the mid-1950s its surface-ship facilities have specialized in large merchant ships, icebreakers, large rescue and salvage ships, fish-factory ships, floating dry docks, and a few naval auxiliaries.