> It's a beautiful space with an incredible history - it's where the US built battleships for WWI and WWII. Pretty sure this plays fast and loose with the history of American naval warfare. The only battleship built in San Francisco, that I can think of, is the 19th-century relic USS Ohio.
http://pier70sf.org/history/shipsBuilt/ShipsBuiltAll.html
Probably the tweeter was just using that term colloquially, like "ship of war", rather than as a classification of size and function.