noun
control key; Ctrl key
Refers to the Ctrl key on a computer keyboard, used in combination with other keys for shortcuts.
コントロールキーを押しながらCを押すとコピーできます。
You can copy by pressing C while holding down the control key.
Variant with interpunct; less common but seen in some technical contexts.
Ctrl is the English abbreviation often seen on keycaps; コントロールキー is the full Japanese term.
Loanword from English 'control key', referring to the Ctrl key on computer keyboards.