Agreement under which the lender undertakes to lend to the borrower, in particular, a certain sum of money and the borrower undertakes to repay such amount of money to the lender when the loan becomes due. The loan may be granted for either a definite or indefinite term and either bear interest or be interest-free. Moreover, the lender may request that the borrower grant collateral (e.g. assignments of receivables, surety agreements, lien rights). The loan agreement is dealt with in Arts. 312 et seq. of the Code of Obligations (Obligationenrecht, OR).