"Signature debit" refers to a type of payment card transaction where you authorize your purchase by signing a receipt instead of entering a PIN number.
Sentences with «signature debit»
You sell a fixed dollar amount of your future credit and signature debit card sales at a discount. (newtekreferrals.com)
Spending on signature debit, for example, grew by just 2 percent last month. (creditcards.com)
Debit card spending using signature debit rose by 6 percent, while spending on prepaid cards rose by 3.8 percent. (creditcards.com)