Long

The word long has several meanings:

• In computing, long is often used as a short-hand description for the long integer datatype, particularly when used to declare a variable of this type (for example in the C programming language).
• In finance, to be long regarding a security, such as a stock, means to own it. Buying first may bring with it an obligation to sell in the future. Contrast with short selling and hedging.
• In futures, to be long is to buy a futures contract before selling it. Spread traders may hold long and Short contracts simultaneously in the same or related security markets. See spread.

Place names

• Long Island - an island in New York, United States
• 陇, or Lǒng is an abbreviation for the Gansu province of the People's Republic of China.