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English definition of “AER”

AER

noun [S]     BANKING, FINANCE
abbreviation for annual equivalent rate: the rate of interest that an investor will receive if they leave a particular amount of money in an account for one year: The 7% interest rate is valid for six months, and then drops to 6% for six months, making an AER of 6.5% for the year.
(Definition of AER noun from the Cambridge Business English Dictionary © Cambridge University Press)
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