What is a Shortcut Key? A Complete Beginner's Guide (2025)

Shortcut keys are combinations of keys on your keyboard that perform specific tasks faster than using a mouse. They are essential tools for improving productivity, navigating software more efficiently, and reducing repetitive strain.

In this guide, we’ll explain what shortcut keys are, how they work, and give you practical examples across popular platforms like Windows, macOS, and common apps such as Microsoft Word and Google Chrome.


Definition: What is a Shortcut Key?

A shortcut key (also called a keyboard shortcut) is a quick way to execute a command using a specific key combination instead of going through menus or clicking with a mouse.

For example:

  • Ctrl + C = Copy

  • Ctrl + V = Paste

  • Alt + Tab = Switch between open applications

Shortcut keys save time and help users work more efficiently, especially when performing repeated tasks.

Why Are Shortcut Keys Important?

Using shortcut keys can:

  •  Speed up your workflow

  •  Reduce reliance on the mouse

  •  Improve focus by keeping your hands on the keyboard

  •  Help with memory retention of frequently used commands

  •  Minimize wrist and arm fatigue

Whether you're a student, office worker, or content creator, learning basic shortcut keys can make a big difference.

Common Shortcut Keys in Windows (2025)

ShortcutFunction
Ctrl + CCopy selected item
Ctrl + VPaste copied content
Ctrl + ZUndo last action
Alt + TabSwitch between open windows
Windows + DShow desktop
Windows + LLock your PC

Common Shortcut Keys in macOS

ShortcutFunction
Command + CCopy
Command + VPaste
Command + ZUndo
Command + TabSwitch between open apps
Command + SpaceOpen Spotlight search
Control + Command + QLock screen

Shortcut Keys in Microsoft Word

ShortcutAction
Ctrl + BBold
Ctrl + IItalic
Ctrl + UUnderline
Ctrl + SSave document
Ctrl + PPrint

Useful Shortcuts in Web Browsers (Chrome, Edge, Firefox)

ShortcutAction
Ctrl + TOpen new tab
Ctrl + Shift + TReopen last closed tab
Ctrl + LFocus address bar
Ctrl + WClose current tab
Ctrl + DBookmark current page

How to Learn and Customize Shortcut Keys

  • Explore the Help menu in most software (look for "Keyboard Shortcuts")

  • Use online cheat sheets or printable guides

  • On Windows, use PowerToys to remap keys

  • On macOS, go to System Preferences > Keyboard > Shortcuts

  • Practice daily – muscle memory builds over time

Things to Remember

  • Some shortcut keys vary based on region or keyboard layout

  • Certain apps may override default OS shortcuts

  • On laptops, you may need to use the Fn key for functions like volume or brightness

Final Thoughts

Shortcut keys are one of the simplest yet most powerful ways to become faster and more efficient on your computer. Whether you're editing documents, browsing the web, or navigating your system, mastering a few essential key combinations can save hours over time.

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