1. (computing) a factor of 2^30, 1073741824 
2. One billion (10^9)

Encyclopedia: Giga-

• internal revenue agent
• Internal Revenue Service
• internal rhyme
• internal secretion
• internal spermatic artery
• internal-combustion engine
• internalisation
• internalise
• internality
• internalization
• internalize
• internally
• internasal suture
• international
• international affairs
• international ampere
• International Association of Lions clubs
• International Atomic Energy Agency
• International Bank for Reconstruction and Development
• international candle
• International Civil Aviation Organisation
• International Civil Aviation Organization
• International Court of Justice
• International Date Line
• International Development Association