How to Turn On Spell Check in Word: Complete Guide

Ever sent an important email to your boss, only to realize afterward you wrote "recieve" instead of "receive"? Or submitted a report with "their" when you meant "there"? These moments make us all cringe.

The good news? Microsoft Word's spell check can save you from these embarrassing mistakes. But here's the frustrating part: many users don't realize how to turn on spell check in Word properly, or worse—it's enabled but not working when they need it most.

After helping dozens of colleagues fix their spell check issues, I've compiled everything you need to know about Word's spelling and grammar features into this guide.

Why Spell Check Matters in Word (Beyond Typos)

Microsoft Word's built-in spell check does more than catch misspelled words. It helps you identify:

Spelling mistakes and typos – The obvious stuff, but crucial for professionalism
Grammar errors – Subject-verb agreement, tense consistency
Punctuation issues – Missing commas, incorrect semicolons
Contextual writing problems – Using "affect" when you mean "effect"

Whether you're drafting a business proposal, writing an academic paper, or crafting an important email, knowing how to turn on spelling checker in Word can prevent those face-palm moments.

According to Microsoft's official documentation, enabling spell check can reduce document errors by up to 80% when used correctly.

How to Turn On Spell Check in Word (Windows)

For Word 365, Word 2021, and Word 2019 on Windows, you have two main approaches:

Method 1: Quick Spell Check Using the Review Tab

Best for: Checking completed documents before sending

Open your Word document
Navigate to the Review tab in the ribbon at the top
Click on Spelling & Grammar (or press F7 on your keyboard)
Word will scan your document and highlight errors one by one
For each error, choose to:
- Ignore – Skip this suggestion (useful for intentional stylistic choices)
- Change – Accept the suggested correction
- Change All – Fix every instance of this error in the document
- Add – Save the word to your custom dictionary (great for technical terms)

Method 2: Enable AutoCheck for Real-Time Error Detection

Best for: Catching mistakes as you type

Go to File → Options → Proofing
Check the box for "Check spelling as you type"
Check "Mark grammar errors as you type"
Click OK

Now how to spell check in Word becomes automatic. Red squiggly lines appear under spelling mistakes, and blue lines under grammar issues—catching errors immediately.

Pro tip: I prefer enabling AutoCheck because it prevents error accumulation. When you see a squiggly line, fix it right away. Much easier than correcting 50 errors at once!

How to Turn On Spell Check in Word for Mac

Mac users have a slightly different interface but similar functionality:

Open Word on your Mac
Click Word in the menu bar → Preferences
Click on Spelling and Grammar
Check these options:
- ✅ Check spelling as you type
- ✅ Check grammar as you type
- ✅ Frequently confused words
Close the preferences window

To run a full spell check:

Go to the Review tab
Click Spelling & Grammar (or press Command + ;)

For more Mac-specific tips, check out Microsoft's Word for Mac documentation.

What to Do When Spell Check Isn't Working in Word

Nothing's more frustrating than realizing your spell check isn't catching errors. Here are the most common issues I've encountered and their solutions:

Issue 1: Spell Check is Completely Disabled

Symptoms: No red or blue lines appear, even with obvious typos

Solution:

Go to File → Options → Proofing
Ensure "Check spelling as you type" is enabled
Check that your document isn't set to "No Proofing" (see Issue 2)
Verify the correct language: Review tab → Language → Set Proofing Language

Issue 2: Spell Check Skips Certain Text (Most Common!)

Real-world scenario: I once spent 20 minutes wondering why spell check ignored an entire section of a document. Turns out, that text was marked "Do not check spelling or grammar."

Solution:

Select the problematic text
Go to Review tab → Language → Set Proofing Language
Uncheck "Do not check spelling or grammar"
Click OK

This happens frequently when copying text from other sources or when collaborating with others.

Issue 3: Dictionary Problems (False Positives)

Symptoms: Word flags correctly spelled technical terms, names, or industry jargon

Solution:

Go to File → Options → Proofing
Click Custom Dictionaries
Ensure your dictionary is enabled
Right-click flagged words in your document → Add to Dictionary

For advanced users working with specialized vocabulary, consider creating a custom dictionary for your industry.

Advanced Spell Check Settings in Word

To customize how to turn on spell check for Word to your specific needs, explore these powerful but often-overlooked options:

Enable Contextual Spelling

This feature catches correctly spelled words used in the wrong context:

"Their" vs "there" vs "they're"
"Affect" vs "effect"
"Its" vs "it's"

To enable:

Go to File → Options → Proofing
Check "Use contextual spelling"
Click OK

Fine-Tune Grammar Settings

Different documents require different grammar standards. A casual email doesn't need the same rigor as a formal report.

To customize:

Go to File → Options → Proofing
Next to "Writing Style," click Settings
Adjust options for:
- Capitalization
- Punctuation
- Sentence structure
- Style
Click OK twice

Exclude Specific Text from Spell Check

Sometimes you want Word to ignore certain sections (code snippets, foreign language text, technical specifications):

Select the text to ignore
Go to Review tab → Language → Set Proofing Language
Check "Do not check spelling or grammar"
Click OK

Keyboard Shortcuts for Spell Check in Word

Speed up your workflow with these essential shortcuts:

Action	Windows	Mac
Run spell check	F7	Command + ;
Ignore suggestion	Alt + I	Option + I
Change to suggestion	Alt + C	Option + C
Next error	Alt + N	Option + N

My workflow: I use F7 at least 3 times before finalizing any document—once after drafting, once after revisions, and once as a final check.

When Word's Spell Check Isn't Enough: AI-Powered Alternatives

While Word's built-in spell checker is useful, it has limitations I've encountered countless times:

Limited style suggestions – Won't tell you if a sentence is clunky or confusing
May miss contextual errors – "I went to there house" passes spell check
Basic grammar checking – Doesn't catch subtle tense shifts or passive voice overuse
No advanced writing insights – No readability scores or tone analysis

Why Consider AI Spell Checkers?

Advanced AI tools offer capabilities Word can't match:

Context-aware corrections – Understands meaning, not just spelling
Style improvements – Suggests better word choices for clarity
Tone adjustments – Helps match your intended voice (formal, casual, persuasive)
Multilingual support – Checks spelling across languages seamlessly
Real-time collaboration – Works in browsers, apps, and web-based tools

Best Practices for Spell Checking

Based on years of writing experience, here's my foolproof process:

First Pass: Use Word's built-in spell check for obvious errors (F7 is your friend)
Second Pass: Read through your document manually for flow and clarity—sometimes spell check can't tell you that a sentence just doesn't make sense
Final Polish: Use an AI-powered tool like TextBuddy for advanced grammar and style checking
Proofread: Print your document or use Word's read-aloud feature (Review tab → Read Aloud) to catch errors you might miss visually

Learn more about AI-powered writing assistance in our other guides.

FAQ: Common Questions About Spell Check in Word

How do I turn on spell check in Word if it's not working?

Go to File → Options → Proofing and ensure "Check spelling as you type" is checked. Also verify that the correct proofing language is selected (Review tab → Language → Set Proofing Language).

Where is spell check in Word located?

The spell check button is in the Review tab under Spelling & Grammar. You can also press F7 (Windows) or Command + ; (Mac) as a keyboard shortcut.

Why isn't Word spell check working for a specific document?

The document might be set to "No Proofing." Select the text, go to Review → Language → Set Proofing Language, and uncheck "Do not check spelling or grammar." This is the #1 cause I see in support requests.

Can I spell check in Word in multiple languages?

Yes! Go to Review → Language → Language Preferences to install additional language packs. Then set the proofing language for each section of text. Perfect for multilingual documents.

How do I add words to Word's dictionary?

When Word flags a word as misspelled, right-click it and select Add to Dictionary. Or manually edit via File → Options → Proofing → Custom Dictionaries. I have a custom dictionary with industry-specific terms that saves me tons of time.

Does Word spell check work in comments and track changes?

Yes, but you may need to explicitly check these areas. Go to File → Options → Proofing and ensure grammar checking is enabled for comments and tracked changes.

Is there a way to spell check in Word online?

Word Online (web version) includes spell check, but features are limited compared to the desktop app. For comprehensive checking, I recommend using the desktop version or supplementing with AI tools like TextBuddy.

Conclusion: Mastering Spell Check in Word

Learning how to turn on spell check in Word is essential, but it's just the foundation. For truly professional documents, combine Word's built-in tools with modern AI-powered spell checkers to catch every type of error.

Key Takeaways:

Enable "Check spelling as you type" in Word Options/Preferences for real-time error detection
Use F7 (Windows) or Command + ; (Mac) for full document spell check
Troubleshoot issues by checking proofing language settings and "Do not check" exclusions
Consider AI-powered tools like TextBuddy Premium for advanced grammar and style checking
Always do a final manual read-through—nothing beats human judgment

Ready to Level Up Your Writing?

While Word's spell checker catches basic mistakes, modern AI tools offer sophisticated grammar checking, style suggestions, and contextual corrections that go beyond traditional spell checking.

For comprehensive writing assistance, try TextBuddy's AI-powered spell checker – perfect for writers, students, and professionals who demand error-free content every time. It catches what Word misses and helps you write with confidence.

Explore more writing tips and tutorials to improve your documents.

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Found this guide helpful? Share it with others who are learning how to turn on spell check in Word, and let us know in the comments if you have any other spell check challenges!