variants:
or less commonly Control key
Definition of control key
: a key on a computer keyboard that when pressed in combination with other keys enables special commands or symbols to be accessed
Pressing "z" while holding down the control key often undoes the last action.
—abbreviation Ctrl
— compare alt key
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Merriam-Webster unabridged
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Time Traveler for control key
The first known use of control key was in 1978
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