alt key: meaning, definition, pronunciation and examples

High
UK/ˌɔːlt ˈkiː/US/ˌɔlt ˈki/ or /ˌɑlt ˈki/

Technical / Informal

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Quick answer

What does “alt key” mean?

A modifier key on a computer keyboard, labeled 'Alt', used to change the function of other keys when pressed in combination with them.

Audio

Pronunciation

Definition

Meaning and Definition

A modifier key on a computer keyboard, labeled 'Alt', used to change the function of other keys when pressed in combination with them.

A key used primarily to access alternate characters, shortcuts, or functions in software applications, often serving a similar purpose to the Option key on macOS keyboards.

Dialectal Variation

British vs American Usage

Differences

There are no significant linguistic differences in the term itself. Keyboard hardware may have slight layout variations (e.g., the position of the 'Alt' key relative to the spacebar can differ between ISO and ANSI layouts). The terminology is identical.

Connotations

None.

Frequency

Equally frequent in both British and American English computing contexts.

Grammar

How to Use “alt key” in a Sentence

Press the [Alt key] + [Letter/Number]Hold down the [Alt key] while clickingUse the [Alt key] to access

Vocabulary

Collocations

strong
presshold downusehittype Alt +
medium
left/right Alt keyAlt key combinationAlt key shortcutAlt key code
weak
function of the Alt keylocated next tolabel on the Alt key

Examples

Examples of “alt key” in a Sentence

verb

British English

  • You need to alt-tab between the programmes.
  • Remember to alt-click on that icon to see the menu.

American English

  • You need to alt-tab between the programs.
  • Remember to alt-click on that icon to see the menu.

adjective

British English

  • The alt-key function is not working.
  • Check the alt-key shortcut settings.

American English

  • The alt key function is not working.
  • Check the alt key shortcut settings.

Usage

Meaning in Context

Business

Used for software shortcuts to improve workflow efficiency, e.g., 'Use Alt-Tab to switch between your spreadsheet and email.'

Academic

Mentioned in computer science or human-computer interaction texts regarding input devices and user interface design.

Everyday

Common in instructions for using a PC, e.g., 'To print, hold the Alt key and press P.'

Technical

Central to describing keyboard shortcuts, ASCII/Unicode entry (Alt codes), and accessibility features like Sticky Keys.

Vocabulary

Synonyms of “alt key”

Strong

Option key (macOS specific)

Neutral

AltAlternate key

Weak

modifier keyfunction key

Vocabulary

Antonyms of “alt key”

unmodified keyprimary key

Watch out

Common Mistakes When Using “alt key”

  • Pronouncing it as 'alt' (like 'halt' without the 'h') instead of /ɔːlt/ or /ɑlt/.
  • Forgetting it's a 'modifier' key that must be used with another key.
  • Confusing it with the 'Alt Gr' key (Alt Graph) on some international keyboards.

FAQ

Frequently Asked Questions

It stands for 'Alternate'.

They serve very similar purposes. The 'Alt' key is standard on Windows and many other keyboards, while the 'Option' key is found on Apple Macintosh keyboards. Their functions are largely equivalent.

The Alt key is a modifier key. It is designed to change the output of another key when both are pressed together, not to perform an action by itself (though in some applications, a single press might activate a menu).

Short for 'Alt Graph'. It is a key found on some international keyboards, primarily used to type characters not normally available on the keyboard layout, such as currency symbols or accented letters.

A modifier key on a computer keyboard, labeled 'Alt', used to change the function of other keys when pressed in combination with them.

Alt key is usually technical / informal in register.

Alt key: in British English it is pronounced /ˌɔːlt ˈkiː/, and in American English it is pronounced /ˌɔlt ˈki/ or /ˌɑlt ˈki/. Tap the audio buttons above to hear it.

Phrases

Idioms & Phrases

  • Alt-tab (to switch between applications)
  • Alt-F4 (common shortcut to close a window)

Learning

Memory Aids

Mnemonic

Think of 'Alt' as 'ALTERNATE action' – it ALTERS what the other keys do.

Conceptual Metaphor

A SHIFT KEY FOR FUNCTIONS (like the Shift key changes letter case, the Alt key changes key functions).

Practice

Quiz

Fill in the gap
To type the euro symbol (€) on many Windows PCs, you hold down the and type 0128 on the number pad.
Multiple Choice

What is the primary function of the Alt key?