Discount interest refers to the reduced rate at which a borrower pays back a loan or a bond issuer repays the bond's face value. Synonyms for discount interest include reduced interest, concessional interest, low-interest rates, and rebate. The reduced interest rate means that the borrower will have to pay back less than they would with a regular interest rate. The concessional interest allows the borrower to take out a loan at a lower interest rate than what is usually offered. The low-interest rate means that the borrower will pay less interest over the life of the loan. Finally, the rebate allows the borrower to receive moneyback based on their repayment performance.