# function key

CEFR B2 · Compound

Source: https://englishreference.com/word/function-key
Updated: 2026-07-22

## Definition

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.

For teachers: 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.

## Examples

- 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.

## Usage notes

- Often abbreviated as 'F-key' in technical manuals.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.