A lockpicking tool in the form of a key of the type generally used to open a lock, on which all pins have been cut down to the lowest position, so that striking this key sharply with a hammer while applying turning force at just the right instant after the impact will 'bump' open a lock.

A special modifier key on a typewriter or computer keyboard, typically used to attach a specific diacritic to another character.

Any of certain keys of a computer keyboard that switch between certain states and are represented by LEDs.

A keycard.

(computing) Any of a set of keyboard keys marked with directional arrows, used for navigation through documents and lists etc.

A serial key of a program to be installed from a compact disc.

(computing) A string of characters or equivalent access code that must be input into a program in order to activate it.

A key on a computer keyboard marked with a horizontal or vertical arrow, used to move the cursor or other item around the screen.

(computing) A key on a computer keyboard bearing the Microsoft Windows logo, used to open the Start menu and as a modifier key for various other functions.

(film) The head of the grip department, involved with lighting and camera movement.