Numbers

• 1,000,000,000,000 (one million million; $10^\{12\}$; SI prefix: tera-) - for all short scale countries - increasingly common meaning in English language usage.
• 1,000,000,000,000,000,000 (one million million million; $10^\{18\}$; SI prefix: exa-) - for all long scale countries - increasingly rare meaning in English language usage but frequent in many other languages.

Other meanings

• One trillion (basketball), a term in basketball statistics
• Trilliant cut, sometimes called trillion, a triangular type of modified brilliant cut in gemstones

See also

• Names of large numbers
• Trillian, a similar-sounding word.