'Ctrl + Z' depicts: 

The correct answer is Undo.

Key Points

• 'Ctrl + Z' is a keyboard shortcut that is commonly used to undo the most recent action performed by the user.
  • This shortcut is widely used in various software applications, including text editors, graphic design software, and more.
  • When you press 'Ctrl + Z', the application reverses the last change made, effectively undoing it.
  • This function is extremely useful for correcting mistakes or reverting changes quickly without having to manually redo all the steps.
  • Most operating systems and software support this shortcut, making it a universal tool for enhancing productivity.

Additional Information

• In some applications, you can undo multiple actions by repeatedly pressing 'Ctrl + Z'.
• The opposite action of 'Undo' is 'Redo', which is commonly performed by pressing 'Ctrl + Y' or 'Ctrl + Shift + Z'.
• Understanding and utilizing keyboard shortcuts like 'Ctrl + Z' can significantly speed up your workflow and improve efficiency.
• The concept of undoing actions is not limited to software; it is also used in various other contexts, such as physical undo buttons in machinery.