There are several synonyms for the term "function key." These keys are typically found on computer keyboards and provide additional functionality beyond what standard keys provide. Some common synonyms include "F-key," "Fn key," or simply "function button." The exact terminology can vary depending on the manufacturer and model of the keyboard. Function keys typically perform tasks such as adjusting screen brightness, controlling audio playback, or activating keyboard shortcuts. They are often used in conjunction with other keys, such as the Ctrl or Alt keys, to perform more complex tasks. Regardless of what they are called, function keys provide users with a quick and convenient way to navigate and control their computers.