Libor, which stands for London Interbank Offered Rate, is a benchmark interest rate that is used across the globe. It plays a crucial role in the world of finance and banking, as it determines the rates at which banks can lend money to one another. Synonyms for Libor include "Interbank Rate", "Interbank Offered Rate", "Benchmark Rate", and "Reference Rate". These terms are often used interchangeably and refer to the same concept of an interest rate benchmark. While Libor has been widely used in the past, it is gradually being replaced by alternative rates such as the Secured Overnight Financing Rate (SOFR) in the United States.