function key
compound.compound. one of the buttons at the top of a computer keyboard, usually labeled F1 to F12. You press these to make the computer perform a specific task quickly.
compound. any of a set of keys on a computer keyboard that can be programmed to perform specific operations. Typically located in a row at the top of the keyboard and designated by the letter F followed by a number.
Press the F5 function key to refresh the web page.
The software allows users to map their most frequent commands to a specific function key for faster editing.
While modern laptops often prioritize media controls, the traditional function key row remains essential for executing complex shortcuts within professional development environments and legacy database systems.
A compound of the English words function and key. The term appeared in technical documentation for programmable electronic calculators and mainframe terminals before becoming a standard feature of personal computer hardware.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Often abbreviated as 'F-key' in technical manuals.
Last updated July 22, 2026