1.5 · Spelling & Grammar Checking

Level 1 · Beginner

1.5Spelling & Grammar Checking

Goal: Activate and leverage Word's built-in correction tools to produce error-free text, while understanding their limitations.
Estimated time: 12 min · self-paced reading · If you only have 5 min: read “The essentials in 30s” + the diagram.

The essentials in 30 seconds

  • Red wavy lines indicate spelling errors; the blue ones are grammatical errors.
  • F7 launches the complete verification of the document from start to finish.
  • Microsoft Editor adds checks for style, clarity, and tone in addition to spelling.

Fil Imane — Spelling & grammar correction

Imane rereads an important letter intended for a client. She must correct mistakes, check proper names, use the personal dictionary and avoid letting an error in meaning slip through.

Continuation of the common thread: a logistics SME in Algiers professionalizes its documents.

1. Real-time spell checking

Word checks spelling in real time and flags errors with red wavy lines below words. Right-click the word in error to see suggested corrections.

To correct a word, select the correct suggestion from the context menu. To ignore an error (proper name, technical term), choose “Ignore once” or “Ignore all occurrences” (to no longer be bothered by that word throughout the document).

The grammar check uses wavy blue lines. They flag grammar, syntax and punctuation errors. The treatment is the same: right click > correction or ignore.

To run a full document review, use the F7 key or the Review > Spelling & Grammar tab. Word goes through the document from start to finish and suggests corrections for each error found.

2. Microsoft Editor: the advanced writing assistant

Microsoft Editor is the evolution of classic spell checking. It adds checks for style, clarity, and tone in addition to spelling and grammar.

The Editor analyzes your text and suggests improvements for concision (sentences that are too long), clarity (ambiguous wording) and tone (terms that are too familiar or too formal). Suggestions appear in blue in the Editor pane.

To activate the Editor, go to the Review tab and click “Editor” (or Shift+F7). The pane opens on the right with an essay score and suggestion categories.

The full version of Editor requires a Microsoft 365 subscription. The free version is limited to basic spelling and grammar.

3. Autocorrect

AutoCorrect (AutoCorrect) replaces certain texts with others in real time. For example, “acoteur” is automatically replaced with “actor” as you type.

You can customize AutoCorrect via File > Options > Proofing > AutoCorrect Options. You can add your own rules (for example, replace “cdt” with “regards”).

Common automatic corrections include capitalization after a period, correcting double letters, and replacing certain characters (" --> " → " → ").

Warning: automatic correction can also be problematic. If it replaces a term that you want to keep as is, use Ctrl+Z immediately after the replacement to undo the correction. It is then deactivated for that word for the current session.

4. The dictionary and additional tools

Word includes a dictionary accessible by double-clicking on a word and choosing “Define” (or Ctrl+F7 if the language allows it). The definition is displayed in a small information bubble.

The custom dictionary allows you to add specific words, technical terms or acronyms that you use regularly. Add them via File > Options > Verification > Custom Dictionaries > Add.

The linguistic check is linked to the language of the document. For a bilingual document, you can set different language ranges via the Review > Language > Set Proofing Language tab.

Finally, remember that automatic proofing never replaces human proofreading. The tools detect technical errors but do not understand the deeper meaning of the text. Always proofread your important documents manually.

Common misinterpretation: “Spelling & grammar correction can be adjusted by feeling. » No: Red wavy lines indicate spelling errors; the blue ones are grammatical errors. F7 launches the complete verification of the document from start to finish. A professional document is built using a reproducible method, not by successive edits.
Correction levels in Word From automatic detection to human verification, each level has its role Correctionautomatic+Verificationspelling+Editor(style + clarity)+Proofreadinghuman Automatic tools detect technical errors, but only a human eye validates meaning and tone.
From automatic detection to human verification, each level has its role
Text version of the diagram (SEO / screen readers / translation): 1) Red wavy lines indicate spelling errors; the blue ones are grammatical errors. 2) F7 launches the complete verification of the document from start to finish. 3) Microsoft Editor adds checks for style, clarity, and tone in addition to spelling. Lesson: apply “Spelling & Grammar Correction” methodically to produce a reliable document.

🔎 Concrete example — Concrete example — Correct a document with F7 and Editor

1. Open the document to check
2. Press F7 to launch spelling and grammar checking
3. Word displays the proofing pane with the first error
4. Select the suggested correction or click Ignore
5. Continue until the end of the document
6. Open Editor (Review > Editor) for style suggestions
7. Review the conciseness and clarity suggestions
8. Manually proofread the document to validate meaning

Here is the complete procedure for checking and correcting a document before sending:

F7 goes through the entire document systematically

The Editor goes beyond spelling to improve writing quality

Human proofreading remains essential for important documents

Section vocabulary

Automatic correction
Word feature that automatically replaces certain words or characters with others in real time as you type

Simple example: Imane applies “Automatic Correction” in her professional documents.

What it is not: Treat “AutoCorrect” as a detail with no impact on the document.

Reflex: Does this choice make the document clearer and more reliable?

Microsoft Editor
Advanced Word Editing Assistant adds style, clarity, and tone checks to spelling correction

Simple example: Imane applies “Microsoft Editor” in her professional documents.

What it is not: Treat “Microsoft Editor” as a detail with no impact on the document.

Reflex: Does this choice make the document clearer and more reliable?

Personalized dictionary
List of clean words and technical terms added by the user to avoid false correction alerts

Simple example: Imane applies “Personalized Dictionary” in her professional documents.

What it is not: treat “Custom Dictionary” as a detail with no impact on the document.

Reflex: Does this choice make the document clearer and more reliable?

Linguistic verification
Analysis of text according to the rules of the language defined for the document or a range of text

Simple example: Imane applies “Linguistic verification” in her professional documents.

What it is not: treat “Linguistic verification” as a detail with no impact on the document.

Reflex: Does this choice make the document clearer and more reliable?

In practice — Check and correct a document with Word tools

  1. Open a document containing multiple spelling and grammar errors
  2. Press F7 to start spell check
  3. Correct at least 5 errors by selecting the suggestions provided
  4. Ignore 2 errors that are not real mistakes (proper names, acronyms)
  5. Open the Editor (Review > Editor) and review the style suggestions
  6. Accept at least one suggestion for brevity or clarity
  7. Manually proofread the document to check the overall meaning
You master the complete correction workflow: automatic verification (F7), Editor for style, and human proofreading for final validation.

Script ready to say — Spelling & grammar correction (25 s)

“Activate and leverage Word's built-in correction tools to produce error-free texts, while understanding their limitations. Concretely, I check this point before distributing the document: the wavy red lines indicate spelling errors; the blue ones are grammatical errors. »

Short wording, to be adapted to the recipient and the context of the document.

Copy and paste template — “Spelling & grammar correction” checklist

CHECKLIST — Spelling & grammar correction
1. Red wavy lines indicate spelling errors; the blue ones are grammatical errors.
2. F7 launches the complete verification of the document from start to finish.
3. Microsoft Editor adds checks for style, clarity, and tone in addition to spelling.
4. The custom dictionary allows you to add your own terms to avoid false alerts.

EXPECTED RESULT: You master the complete correction workflow: automatic verification (F7), Editor for style, and human proofreading for final validation.

Express version

Apply only the essentials and the first key point, then check the rendering in a short document.

Remote

Share a PDF and check fonts, margins and pagination before sending.

As a team

Lock in the common model and document choices to keep colleagues consistent.

Printed version

Check pagination, headers and contrast before printing.

✓ Best practices

  • Use F7 as soon as you finish writing: it’s a reflex that avoids many embarrassing mistakes.
  • Never delete suggestions all at once: review each error individually.
  • Add your technical terms to the personalized dictionary to no longer be bothered.
  • Always proofread an important document manually before sending it.

✗ Common pitfalls

  • Blindly trusting autocorrect: it can wrongly correct specialized terms.
  • Ignore the blue lines (grammar) in favor of the red lines (spelling): both are important.
  • Do not add proper nouns and trade terms to the personalized dictionary: this creates permanent false alerts.
  • Forgetting to set the document language: checking in the wrong language reports everything as an error.

Key takeaways

  • Red wavy lines indicate spelling errors; the blue ones are grammatical errors.
  • F7 launches the complete verification of the document from start to finish.
  • Microsoft Editor adds checks for style, clarity, and tone in addition to spelling.
  • The personalized dictionary allows you to add specific terms to avoid false alarms.

48 hour challenge — apply tomorrow

Resume checking and correcting a document with Word tools on a real document from Imane's SME: Open a document containing several spelling and grammar errors. Time it for 20 minutes and note what has changed.

Section exit checklist
  • I can explain and apply: Red wavy lines indicate spelling errors; the blue ones are grammatical errors.
  • I can explain and apply: F7 launches the complete document check from start to finish.
  • I can explain and apply: Microsoft Editor adds checks for style, clarity, and tone in addition to spelling.
Self-assessment 1-5: I have mastered “Spelling & grammar correction”?Can I apply it in a real document without help?

Frequently asked questions

How do I enable grammar checking if it is disabled?

Go to File > Options > Proofing and check “Check spelling” and “Check grammar”. You can also enable advanced grammar rules.

Can autocorrect be turned off?

Yes, via File > Options > Proofing > AutoCorrect Options. Uncheck the options you do not want to enable.

How to add a word to the personalized dictionary?

File > Options > Verification > Custom Dictionaries > Add. Type the word and validate. The word will no longer be reported as an error.

Does the Editor replace human proofreading?

No. The Editor detects technical errors and suggests style improvements, but it does not understand the deeper meaning of the text. Human proofreading remains essential.

Check your understanding

What is the hot key to run the full spelling and grammar check of a Word document?

Additional resources (optional, to go further)

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