Word enables its Spelling and Grammar tool by default, allowing you to check documents for misspelled words and some grammar errors. Run the tool to check the entire document or correct errors individually on the page. You can also customize the spell checker's settings.
Use the Spelling and Grammar Tool
Open the Review tab. Select Spelling and Grammar to launch the tool, which displays the first spelling or grammar error it finds.
Correct Spelling Mistakes
The spell checker may make mistakes. If it flags a spelling that is actually correct, select Ignore to tell Word to accept the current spelling. Ignore All tells the tool to accept all words in the document with that spelling. To add the word to the spell checker, so it won't flag it in the future, select Add.
To correct a misspelled word, select the correct word from the list and then Change. Select Change All to correct all words with the same spelling mistake in the document.
Correct Grammar Mistakes
To fix a grammar error, select the correct option and then Change. If you don't understand why Word has flagged something for grammar errors, read the explanation in the pane. If Word has made a mistake and flagged grammar that is actually correct, however, select Ignore.
When you've fixed spelling and grammar errors, select OK on the confirmation message to close the tool.
Correct Spelling While You Type
You can also check spelling and grammar while you type. If Word thinks you've made a mistake, it underlines a misspelled word with a red wavy line; a blue line denotes a grammatical mistake. Right-click on the underlined word to open editing options.
Fix Spelling Mistakes
Select the correct spelling of the word from the list to automatically correct it. Or, select Ignore All if the word is correct or you want Word to ignore the spelling. Use Add to Dictionary to tell the tool to include this spelling in the future.
Fix Grammar Mistakes
Select an option from the list to correct a mistake or use Ignore Once to leave the word or phrase as it is. Select Grammar to open the Grammar pane to find out why Word thinks you've made a grammar error.
Change Spelling and Grammar Settings
Open the File tab and select Options.
Select Proofing from the Word Options menu.
Go to the When Correcting Spelling and Grammar in Word area and check or uncheck the boxes to enable or disable settings.
Go to Writing Style. Select Grammar for basic checks; use Grammar and Style if you want Word to check stylistic problems, such as sentence structure or wordiness, as well as grammar errors.
Select the Settings button next to the Writing Style box to open the Grammar Settings menu. Check or uncheck the boxes to enable or disable rules. Select OK to close the menu and then OK again to apply changes and close Word Options.