Billion

In numbers:

• Billion (word), explanation of long and short scales
• 1,000,000,000 (number), one thousand million, $10^\{9\}$, in the commonly used "short scale"
• 1,000,000,000,000 (number), one million million, $10^\{12\}$, in the "long scale"

In other usage

• Billion (company), a modem manufacturer
• Billion Girl, a shōjo manga series
• Golden billion, a Russian term for the wealthy people of the developed world
• Jack Billion (born 1939), the 2006 Democratic Party candidate for governor of South Dakota