double digits

:  having a twofold relation or character :  dual

:  consisting of two usually combined members or parts

:  being twice as great or as many

:  to make twice as great or as many: such as

:  to increase by adding an equal amount

:  to amount to twice the number of

:  to twice the extent or amount

:  two together

:  downward and forward from the usual position

:  something twice the usual size, strength, speed, quantity, or value: such as

:  a double amount

:  a base hit that enables the batter to reach second base

:  any of the Arabic numerals 1 to 9 and usually the symbol 0

:  one of the elements that combine to form numbers in a system other than the decimal system

:  a unit of length based on the breadth of a finger and equal in English measure to ³⁄₄ inch