
1) Bank bailout unit 2) Cardinal 3) French word used in English 4) Networking hardware company 5) One thousand million 
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1) Giga 2) Milliard 
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 Billion, in all forms of official English follows the short scale usage: it denotes one thousand million, {10^|9}, or 1000000000}}. Billion may also refer to: ...
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• (n.) According to the French and American method of numeration, a thousand millions, or 1,000,000,000; according to the English method, a million millions, or 1,000,000,000,000. See Numeration.
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A billion is a thousand million. Multicellular life evolved on Earth about a billion years ago. 
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1 000 000 000 - one thousand million. 
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In the U.S., 109. In other countries using SI, 1012. 
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Bil'lion  noun [ French 
 billion , arbitrarily formed from Latin 
 bis twice, in imitation of 
 million a million. See 
 Million .] According to the French and American method of numeration, a thousand millions, or 1,000,000,000; according to the English method, a million millions, o...
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Formerly a billion was one thousand million (10 to the 9th power) in the USA and France and one million (10 to the 12th power) in Britain and Germany. It is now almost universally taken to be one thousand million.
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[
adj] - (U.S.) denoting a quantity consisting of one thousand million items or units 2. [n] - (in Britain) the number that is represented as a one followed by 12 zeros 3. [n] - (in the United States) the number that is represented as a one followed by 9 zeros
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A number equal to 10
9. See also: Million, Trillion.
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https://www.encyclo.co.uk/local/20687
1000000000000 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
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https://www.encyclo.co.uk/local/20974
 adjective denoting a quantity consisting of one thousand million items or units in the United States
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Cardinal number represented by a 1 followed by nine zeros (1,000,000,000 or 10
9), equivalent to a thousand million
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  No exact match found.