Billion meaning

bĭlyən
Frequency:
The definition of a billion is a thousand millions.

An example of a billion is $1,000,000,000.

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The cardinal number equal to 109 .
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(chiefly british) The cardinal number equal to 1012 .
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An indefinitely large number.
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A thousand millions (1,000,000,000)
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Trillion (a million millions)
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Amounting to one billion in number.
adjective
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One thousand millions, or 1 followed by nine zeros (10 to the 9th power). In long scale usage, billion refers to a million millions, or 1 followed by 12 zeros (10 to the 12th power). See space/time and long scale.
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(US, modern British & Australian, short scale) A milliard, a thousand million: 1 followed by nine zeros, 109.
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(colloquial, in the plural, hyperbolic) A very large number.

There were billions of people at the concert.

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Origin of billion

  • French a million million blend of bi- second power bi–1 million

    From American Heritage Dictionary of the English Language, 5th Edition

  • From French billion

    From Wiktionary