Word has no dedicated abbreviation finder, but its wildcard search can locate words written in capitals, such as NASA or ROI, which catches most abbreviations and acronyms. That makes it easy to check that each one is defined or listed in a glossary.
Quick Answer
Press Ctrl+H, click More, check Use wildcards, type <[A-Z]{2,}> in Find what, and click Find In, Main Document to select every word with two or more capital letters.
How to Find Abbreviations in Word
- Press Ctrl+H to open Find and Replace, then open the Find tab.
- Click More and check Use wildcards.
- Type <[A-Z]{2,}> in Find what. This matches whole words of two or more capital letters.
- Click Find In and choose Main Document to highlight all matches, or click Find Next to step through them.
- To include abbreviations with numbers, such as COVID19, use <[A-Z0-9]{2,}>.

Useful Wildcard Patterns
| Pattern | Finds |
|---|---|
| <[A-Z]{2,}> | All-caps words of 2+ letters |
| <[A-Z]{3,}> | All-caps words of 3+ letters |
| <[A-Z0-9]{2,}> | Capitals mixed with digits |
| <[A-Z].[A-Z]. | Dotted forms like U.S. |
Check That Each Abbreviation Is Defined
Most style guides ask you to spell out an abbreviation the first time it appears, followed by the short form in brackets, such as Return on Investment (ROI). Word’s wildcards can find those definitions:
- Press Ctrl+H, click More and tick Use wildcards.
- In Find what, type
\([A-Z]{2,}\). The backslashes tell Word to look for real brackets. - Click Find Next to jump through every abbreviation that is defined in brackets.
- Compare these with the full list from the main search. Any abbreviation that appears in the main search but never in brackets probably needs defining.
Highlight Every Match to Review
To see all abbreviations at a glance, run the main wildcard search on the Find tab, then click Reading Highlight and choose Highlight All. Word marks each match in yellow while you scroll through the document. Choose Reading Highlight, Clear Highlighting when you are done; this temporary highlight does not print or save.
Build an Abbreviations List
Reports and theses often need a list of abbreviations near the front. Insert a two-column table with the headings Abbreviation and Meaning, then add each entry as you review the highlighted matches. When the list is complete, click inside the table and use Layout, Sort to put it in alphabetical order by the first column. Keep the list updated as you edit, and run the wildcard search one last time before you submit the document.
Troubleshooting
- Nothing is found: make sure Use wildcards is checked; without it, Word searches for the literal text.
- Headings in all caps are matched: they may be formatted with All Caps. Skip them as you review.
- To fix capitalization in Excel lists, see how to capitalize words in Excel.
- On a Mac, read how to find and replace in Word for Mac.
Frequently Asked Questions
Can Word build an abbreviation list automatically?
Not directly. Use the search to find them, then list them in a table or with the Index feature.
Is the search case-sensitive?
Wildcard searches are case-sensitive, which is what makes this pattern work.
Does this work in Word for Mac?
Yes. Use Edit, Find, Advanced Find and Replace, and check Use wildcards.
Summary
- Open Find and Replace with Ctrl+H.
- Check Use wildcards.
- Search for <[A-Z]{2,}>.
- Review each match.

Kermit Matthews is a freelance writer based in Philadelphia, Pennsylvania with more than a decade of experience writing technology guides. He has a Bachelor’s and Master’s degree in Computer Science and has spent much of his professional career in IT management.
He specializes in writing content about iPhones, Android devices, Microsoft Office, and many other popular applications and devices.