1 Ownership of, or other right in, property. 2 Legitimate concern with the outcome of a case or controversy, because of a likelihood that the outcome will affect one's property rights or other rights or privileges. 3 Compensation for making a loan, placing money on deposit, or other use of funds, expressed as a percentage of the principal, calculated and payable on a regular schedule. compound interest. Interest calculated both on the principal and on previously accrued interest. interim reli...