million million /ˈmɪljən/

adjective

1. () (in Roman numerals, M written with a macron over it) denoting a quantity consisting of 1,000,000 items or units  ( million )
   (in Roman numerals, M written with a macron over it) denoting a quantity consisting of 1,000,000 items or units
     He won a million dollars in the lottery.
   He won a million dollars in the lottery.
   

noun

1. () The number that is represented as a one followed by 6 zeros  ( 1000000 , meg , one thousand thousand , million )
   the number that is represented as a one followed by 6 zeros
    The jackpot reached a staggering fifty million dollars.
   The jackpot reached a staggering fifty million dollars.
   
   
2. [Informal] A very large indefinite number (usually hyperbole)  ( bazillion [Informal, N. American] , billion [Informal] , gazillion [Informal] , jillion [Informal, N. American] , million [Informal] , trillion [Informal] , zillion [Informal] )
   a very large indefinite number (usually hyperbole)
    There were millions of flies
   there were millions of flies