The Open Dictionary

Alt (key)

noun

UK/ˈælt ˌkiː/
US/ˈælt ˌkiː/

Definitions of Alt (key) noun

  1. Countable

    A key on a computer keyboard that, when pressed in combination with another key, executes a specific function.

    • Pressing the Alt key and the Tab key together allows you to switch between different applications.

    • You can close the current window by pressing Alt plus F4.

    • To quickly select a menu option, use the Alt key plus the corresponding shortcut key.