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billion vs. trillion

billion
[bil-yuhn] / ˈbɪl jən /

noun

billions, plural billion plural

  1. a cardinal number represented in the U.S. by 1 followed by 9 zeros, and in Great Britain by 1 followed by 12 zeros.

  2. a very large number.

    I've told you so billions of times.

adjective

  1. equal in number to a billion.

trillion
[tril-yuhn] / ˈtrɪl jən /

noun

trillions, plural trillion plural

  1. a cardinal number represented in the U.S. by 1 followed by 12 zeros, and in Great Britain by 1 followed by 18 zeros.

adjective

  1. amounting to one trillion in number.