Shanghai can mean:

• The City of Shanghai in China
• The act "to shanghai (verb)", which indicates the act of drugging or heavily intoxicating men in order to make them serve as unfree labor aboard sea-faring ships.
• Shanghai solitaire, a Solitaire variant with Mahjong tiles.
• Shanghai woman, an English expression for a prostitute, but with a far more complex and interesting history than most such expressions.