billion
adjective
1. denoting a quantity consisting of one thousand million items or units in the United States
Similar word(s): cardinal
2. denoting a quantity consisting of one million million items or units in Great Britain
Similar word(s): cardinal
noun
1. 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
Definition categories: quantity
2. a very large indefinite number (usually hyperbole)
Similar word(s): bazillion, gazillion, jillion, million, trillion, zillion
Definition categories: quantity
3. the number that is represented as a one followed by 9 zeros
Definition categories: quantity
numeral
1. (US, modern British & Australian, short scale) a thousand million: 1 followed by nine zeros, 109; (long scale) a milliard
2. (dated, British & Australian, long scale) A million million: a 1 followed by twelve zeros or 10 multiplied by 12; 1012
3. (colloquial, in the plural, hyperbolic) A very large number.
- There were billions of people at the concert.