The crossword solution for the term INTEREST FIGURE is RATE, which is a four letter word. A RATE is a fixed proportion or ratio between two things, often used to calculate a price or cost. It can also refer to the interest RATE on a loan or other financial instrument, which is the amount of interest charged by a lender for the use of its money. Rates are also used to measure the speed or frequency of an event, such as the RATE of inflation or the RATE of change in a population.