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Keyboard Symbols Guide: Every Key Explained

·11 min read

You have been using a keyboard your whole life. Or maybe you just got your first computer and you are still figuring things out. Either way, I am willing to bet there are keys on your keyboard you have never touched. Maybe you have never even wondered what they do.

I used to be obsessed with finding out what every single key did. It started when I accidentally hit some random key combination and my whole screen rotated upside down. That actually happens on some Windows machines, and it sent me down a rabbit hole of learning what every symbol and key on a keyboard actually does.

This guide covers everything from the keys you use every day to the ones you have probably been ignoring.

The Keys You Already Know (But Might Not Fully Understand)

Shift

This is the most important modifier key on your keyboard. Hold it down while pressing another key to get the "upper" version, which means capital letters or the symbols printed above the number keys.

Fun fact: the name "shift" comes from typewriters, where you physically shifted the entire set of typebars to hit the uppercase letter stamps. We kept the name even though nothing physically shifts anymore.

Tab

The Tab key moves your cursor to the next "tab stop." In word processors, it inserts a large space, roughly five regular spaces wide. In web browsers and forms, it jumps to the next input field. This is super useful for filling out forms quickly without reaching for your mouse.

Caps Lock

Turns everything you type into capital letters until you press it again. A word of advice: avoid typing entire sentences in all caps. It reads like SHOUTING and people find it aggressive. Caps Lock is best saved for the occasional emphasis or acronym.

Space Bar

The longest key on your keyboard and the one you hit the most. It inserts a blank space between words. Seems simple, but imagine trying to readsentenceswithoutspaces. Exactly.

Enter or Return

This key does several things: creates a new line in documents, submits forms, confirms actions, and sometimes acts as an "OK" button in dialog boxes. If you are ever stuck in a popup or menu, hitting Enter is usually a safe bet.

Backspace and Delete

Backspace removes the character to the left of your cursor. Delete removes the character to the right. On Mac laptops without a dedicated Delete key, you press Fn plus Backspace to delete forward. Most people only ever use Backspace, but knowing about Delete can save you a lot of cursor-moving.

The Number Row: More Than Just Numbers

Hold Shift while pressing any number key to get the symbol printed above it. Here is what each one gives you:

Punctuation Keys Most People Underuse

Forward Slash and Backslash

These two get confused constantly. The forward slash leans to the right (/) and is used in URLs, fractions like 1/2, and dates. It is the one most people mean when they just say "slash."

The backslash leans to the left (\) and is mainly used in Windows file paths like C:\Users\Name. Programmers use it a lot too. If you are ever giving someone a web address, you want the forward slash.

Semicolon

The fancy cousin of the comma. It connects two related sentences that could each stand alone. Like: "I love coding; it is my favorite hobby." Most people avoid semicolons because they seem scary, but they actually make your writing look more polished.

Apostrophe and Quotation Marks

The apostrophe shows possession (like "Sarah's car") or contractions (like "can't" or "don't"). Hit Shift to get full quotation marks for direct speech or quoting someone.

The Backtick or Grave Accent

That little mark in the top-left corner of your keyboard, usually sharing a key with the tilde. Most people never touch it, but programmers use it constantly. It is also how you access accent marks on Mac, like the ones in words like "café" or "résumé."

Tilde

The wavy line (~) that lives above the backtick. In math, it means "approximately." In computing, it often points to your home directory. In Spanish, it goes over the letter n to make it sound different. A small symbol with a surprising number of uses.

Special Keys That Make You Faster

Control (Ctrl on Windows, Command on Mac)

This is your magic modifier key. Combined with other keys, it triggers shortcuts that save you serious time. The essentials everyone should know:

On Mac, replace Ctrl with Command for all of these. Same shortcuts, different modifier key.

Alt (Option on Mac)

The Alt key accesses special characters and menu items. On Windows, you can hold Alt and type number sequences on the numpad to produce special symbols. On Mac, holding Option while pressing certain keys gives you characters like the degree symbol, copyright symbol, and more.

Escape

The "get me out of here" key. It cancels operations, closes menus, exits full-screen mode, and generally saves you when you have clicked something by accident. In video games, it usually opens the pause menu. I think of Escape as the panic button.

Function Keys (F1 through F12)

These vary by application, but some standards have stuck around for decades:

On many laptops, the function keys are secondary to brightness and volume controls. You might need to hold a Fn key to actually use them as F1 through F12.

Finding Even More Symbols

Your keyboard can produce way more characters than what is printed on the keys. Here is how to access them:

On Windows

Press the Windows key plus the period key to open the emoji and symbol picker. You can also search for "Character Map" in your Start menu for a full list of every character available.

On Mac

Press Control plus Command plus Space to open the Character Viewer. You can browse categories or search for specific symbols. Holding the Option key also reveals alternate characters on many keys.

On Mobile Devices

Long-press on keys to see alternate characters. Most keyboards also have a dedicated emoji button and a symbol page you can switch to.

The Bottom Line

Your keyboard is more powerful than you think. Most people use maybe 40 percent of what it can do. Knowing what all the keys and symbols mean makes you faster, more capable, and honestly just more confident when you sit down at a computer.

You do not need to memorize everything in this guide. Just knowing the basics puts you ahead of most people. And the next time someone asks you what the tilde key does, you will actually have an answer.

Related:

Keyboard Symbols|Punctuation Symbols|Math Symbols