1000000000000 1000000000000 /ˈwʌn ˈtrɪljən/

noun

1. [British] The number that is represented as a one followed by 12 zeros; in the United Kingdom the usage followed is frequently seen  ( 1000000000000 [British] , one million million [British] , billion [Archaic, British] )
   the number that is represented as a one followed by 12 zeros; in the United Kingdom the usage followed is frequently seen
   
2. The number that is represented as a one followed by 12 zeros  ( 1000000000000 , one million million , trillion )
   the number that is represented as a one followed by 12 zeros
    In England they call a trillion a billion
   in England they call a trillion a billion