annuity
n. countable C1 Advanced US //əˈnuəti// UK //ɐnjˈuːɪti// an·nu·ity
n. a fixed sum of money paid to you regularly, usually for the rest of your life. You often receive this from a pension or insurance plan.
n. a financial product or contract that provides a guaranteed income stream, typically for a specified period or for life. Commonly associated with retirement planning and insurance.
She receives a monthly annuity from her pension.
After retiring, he bought an annuity to ensure a steady income for his later years.
The actuarial calculations behind the annuity guarantee a lifetime income, shielding the retiree from the risk of outliving their savings.
From French annuité, from Medieval Latin annuitās, from Latin annuus (“annual”). Cf. annuality.