Lending rate and Prime interest rate

Prime interest rate and lending rate are semantically related in interest rate topic. In some cases you can use "Prime interest rate" instead a noun phrase "Lending rate", when it comes to topics like sum charged for use of money.

Prime interest rate noun - The interest rate on short-term loans that banks charge their commercial customers with high credit ratings.

Lending rate and prime interest rate are semantically related in interest rate topic. You can use "Lending rate" instead a noun phrase "Prime interest rate", if it concerns topics such as sum charged for use of money.