cashback - definition and synonyms

noun [uncountable] British 

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/ˈkæʃˌbæk/
  1. 1
    money from your bank account that you can get from a shop when you pay for goods with a debit card

    Can I have £20 cashback, please?

  2. 2
    money that is returned to you after you have paid for something, usually because you accept particular conditions

    They’re offering £100 cashback on orders made before the end of August.