English dictionary

billion meaning and definition

BILLION noun

Definition of billion (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
  2. a very large indefinite number (usually hyperbole)
  3. the number that is represented as a one followed by 9 zeros

BILLION adjective

Definition of billion (adjective)

  1. denoting a quantity consisting of one thousand million items or units in the United States
  2. denoting a quantity consisting of one million million items or units in Great Britain
Source: Princeton University Wordnet