USB, short for Universal Serial Bus, is commonly used in today's world for transferring data between devices. However, there are other similar terms that can also be used to refer to USB technology. One of the synonyms for USB is "flash drive," which is essentially a USB drive that stores data. Another synonym is "thumb drive," which is a smaller version of a flash drive that is more portable. "USB stick" is another phrase that is often used interchangeably with USB. "Pen drive" is yet another synonym that refers to a small, portable device that stores and transfers data via USB. No matter what term is used, USB technology is an important and ubiquitous part of modern technology.