The Find and Replace tool does the work for you
The fastest way to replace a word in Microsoft Word is to use the Find & Replace dialog. Open it by pressing Ctrl+H on Windows or Command+Option+F on Mac. Type the word you want to find in the first box, type the replacement word in the second box, then click Replace All to change every instance at once. If you want to check each replacement before it happens, click Replace one at a time instead.
This tool saves you from manually hunting through your document and retyping. It also catches words you might miss if you were reading through by eye, especially in long documents.
Key Takeaways
- Press Ctrl+H (Windows) or Command+Option+F (Mac) to open Find and Replace in one keystroke.
- Type the word to find in the top box and the replacement word in the bottom box, then click Replace All to change every instance at once.
- Click Replace instead of Replace All if you want to review each change before Word makes it.
- Use Match Case if you need to replace only words that match the exact capitalization, such as replacing "John" but not "john".
- The Undo button (Ctrl+Z) will reverse a Replace All action if you change your mind when ready after.
Step-by-step: replacing every instance of a word
Open your document in Word. Press Ctrl+H (Windows) or Command+Option+F (Mac). The Find and Replace dialog will appear.
In the Find what: field, type the word you want to replace. In the Replace with: field, type the new word. Click the Replace All button. Word will show you a message telling you how many replacements it made. Click Close to shut the dialog.
If you make a mistake, press Ctrl+Z when ready to undo all the replacements at once.
Checking each replacement before Word makes it
If you are not sure whether every instance of the word should be replaced, use Replace instead of Replace All. Open Find and Replace the same way, type the word to find and the replacement word, then click Replace. Word will highlight the first match in your document.
Read the highlighted word in context. If it should be replaced, click Replace again. If it should stay as is, click Find Next to move to the next match without changing it. Keep going until you reach the end of the document.
Using Match Case to replace only exact capitalizations
By default, Find and Replace treats uppercase and lowercase the same way. If you search for "john", it will find and replace "John", "JOHN", and "john" all together. To replace only words with matching capitalization, check the Match Case box before you click Replace or Replace All.
This is useful when you want to replace a common word in one context but not another. For example, you might want to replace "bank" (the financial institution) but leave "bank" (the side of a river) alone in certain sentences. Match Case lets you be more precise about which instances change.
Replacing whole words only, not parts of words
If you search for "cat", Word will find "cat", "catalog", "category", and any other word containing those letters in that order. To replace only the standalone word "cat" and leave "catalog" untouched, check the Find whole words only box before you click Replace or Replace All.
This prevents accidental replacements inside longer words. It is especially helpful when you are working with technical terms or proper nouns that might appear as part of other words.
What to do if you replaced the wrong word
If you click Replace All and realize you made a mistake, press Ctrl+Z when ready to undo the entire action. Word will restore your document to the way it was before the replacements. This works even if you closed the Find and Replace dialog.
If you have already saved the document after the replacement, you cannot undo it. In that case, open the document again and use Find and Replace to change the words back to what they were before. If you are unsure whether you saved, check the title bar of your document — if it shows the filename without an asterisk, the document has been saved.
Using Find and Replace with special characters and formatting
Find and Replace can also search for line breaks, paragraph marks, and other special characters. Click More in the Find and Replace dialog to see additional options. Click Special to see a list of codes you can use — for example, ^p represents a paragraph break and ^t represents a tab.
You can also search for and replace text that has specific formatting, such as bold or italic. Click the Format button to specify that you want to find only bold text, for instance, and replace it with regular text. This is useful when you need to change the style of certain words throughout your document.
Frequently Asked Questions
Can I undo a Replace All if I saved the document?
No. Once you save the document, Ctrl+Z will no longer undo the replacements. If you need to reverse the changes, you will have to use Find and Replace again to change the words back manually. This is why it is a good idea to use Replace (one at a time) instead of Replace All if you are uncertain about the changes.
What if I want to replace a word only in part of my document?
Select the section of text you want to change before you open Find and Replace. When you click Replace All, Word will only search within the selected text, leaving the rest of the document untouched.
Does Find and Replace work the same way in Word Online?
Word Online has a Find and Replace tool, but it is simpler than the desktop version. Press Ctrl+H to open it, type your search and replacement words, and click Replace All. You will not see all the advanced options like Match Case or Find whole words only in the online version.
Can I search for a blank space and replace it with something else?
Yes. In the Find what field, type a space character. In the Replace with field, type what you want to replace it with — for example, a hyphen or a different number of spaces. This is useful for fixing spacing problems throughout a document.