A phrase used to indicate a number between 10 and 99, or that set of numbers as a whole. The sales growth for that product was in the double digits this quarter.My daughter turns 10 this weekend, and I still can't believe I almost have a kid in double digits.
double digits
n. the range of numerals from 10 though 99. When Billy moved into the double digits, he had some behavior problems, but when he was nineteen he sort of straightened out.