Net interest refers to the difference between the total interest earned on financial assets and the interest paid on liabilities during a specific period. In the financial industry, there are several synonyms for net interest. One of them is "net interest income," which is commonly used to describe the total revenue earned from interest minus the expenses paid for interest. Another synonym is "interest spread," which refers to the difference between the interest rate earned on assets and the interest rate paid on liabilities. Lastly, "net interest margin" is a term used to describe the percentage of net interest income to total assets, reflecting the efficiency of an organization's interest-earning ability. Overall, understanding the different synonyms for net interest is essential to communicate effectively in the financial industry.