alt key

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English[edit]

Etymology[edit]

First use appears c. 1964 on the computer keyboard of the PDP-6 TECO.

Noun[edit]

From left to right: A keyboard's control key, Windows key, alt key.

alt key (plural alt keys)

  1. (computing) A key on a personal computer or terminal keyboard used in combination to alter the function of other keys.

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