refund refund /ˈriːˌfənd/

noun

1. () Money returned to a payer  ( refund )
   money returned to a payer
     The customer requested a refund for the defective product.
   The customer requested a refund for the defective product.
   
2. () The act of returning money received previously  ( refund , repayment )
   the act of returning money received previously
   

verb

1. () Pay back  ( give back , refund , return , repay )
   pay back
    Please refund me my money
   Please refund me my money