1. Tenfold; ten times as much or as many
   "a decuple increase in computing power"

1. A quantity ten times as great as another
   "The company's profits were a decuple of last year's earnings"

1. Make tenfold; multiply by ten
   "The company's profits decupled over the past decade"

Derived forms: decuples, decupled, decupling

Encyclopedia: Decuple