billion
- (s) denoting a quantity consisting of one thousand million items or units in the United States
- (s) denoting a quantity consisting of one million million items or units in Great Britain
Nouns
- (n) 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 1000000000000, one million million,
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(n) a very large indefinite number (usually hyperbole)
- there were millions of flies
- (n) the number that is represented as a one followed by 9 zeros 1000000000, one thousand million,