The term 'Interest Gain' can be summarized as the ACCRUAL of interest over time. ACCRUAL is a seven-letter word that describes the process of accumulating something, such as money or interest, over a period of time. This is often done through investments, savings accounts, or other financial instruments. Interest gain is the result of this ACCRUAL, and is the amount of money earned from the investment or savings account over a given period of time.