Related Clues:

• Computer key above ~
• 'Exit' key
• Key to going back
• Key you may push frantically
• Key in the NW of a keyboard
• Key to some shortcuts?
• Key in the same row as Ctrl
• Substitute, abbr
• Help button
• PC key used with F4
• Backing-up key
• PC’s “abort” key
• Key next to the longest key on a keyboard
• PC key that modifies other keys' functions
• Upper-left corner key