Русско-англо-русский юридический словарь

base rate: (in the UK) the interest rate set by the Bank of England for lending to other banks, used as the benchmark for interest rates generally. (Oxford Dictionary)

A base rate is the interest rate that a central bank – such as the Bank of England or Federal Reserve – will charge commercial banks for loans. The base rate is also known as the bank rate or the base interest rate. (Glossary of trading terms)

The Bank of England has decided to keep the base interest rate at 0.75 per cent. (This Is Money)

The base interest rate set by a central bank plays a dual role. It influences people’s decisions on whether to save or invest their money – broadly speaking, people tend to save more when rates are higher and to invest and spend more when it’s cheaper to borrow. (The Conversation)

A bank rate is the interest rate at which a nation's central bank lends money to domestic banks, often in the form of very short-term loans. (Investopedia)

bank rate: another term for base rate or discount rate (Oxford Dictionary)

The official bank rate (also called the Bank of England base rate[1] or BOEBR) is the interest rate that the Bank of England charges Banks for secured overnight lending. It is the British Government's key interest rate for enacting monetary policy.[2] It is more analogous to the US discount rate than to the Federal funds rate. (Wikipedia)