noun
- The number that is represented as a one followed by 12 zeros; in the United Kingdom the usage followed in the United States is frequently seen.
- synonyms: one million million, 1000000000000
- A very large indefinite number (usually hyperbole. )
- usage: "there were millions of flies"
- The number that is represented as a one followed by 9 zeros.
- synonyms: one thousand million, 1000000000
adjective
- Denoting a quantity consisting of one thousand million items or units in the United States.
- Denoting a quantity consisting of one million million items or units in Great Britain. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). Billion. Retrieved September 23, 2026, from http://smartdefine.org/billion/definitions/1169315 |
| Chicago | WordNet. 2010. "Billion" http://smartdefine.org/billion/definitions/1169315 (accessed September 23, 2026). |
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| MLA | WordNet. "Billion" 23 October 2010. Web. 23 September 2026. <http://smartdefine.org/billion/definitions/1169315> |