How to Change Language in Microsoft Word (Display, Editing & Proofing)
Microsoft Word gives you granular control over language settings — but the options aren't all in one place, and they don't all do the same thing. Changing the display language (the menus and interface), the editing/proofing language (spell check and grammar), and the document language (how text is formatted and read) are three separate actions. Understanding which one you actually need to change makes all the difference.
Why Word Has Multiple Language Settings
Word separates language into layers because different users have different needs. A French speaker using an English-language computer might want:
- Menus and buttons in French (display language)
- Spell check running in French (proofing language)
- A document formatted with French typographic rules (document language)
Each layer is controlled independently. Changing one doesn't automatically change the others.
How to Change the Editing and Proofing Language 🌍
This is the most common change people need — telling Word which language to use when checking spelling and grammar.
In Word for Windows:
- Open a document and select the text you want to affect (or press Ctrl + A to select all)
- Go to the Review tab in the ribbon
- Click Language → Set Proofing Language
- Choose your language from the list
- Click OK
To apply this as the default for all new documents, click Set As Default in that same dialog before clicking OK.
In Word for Mac:
- Select your text (or Command + A for all)
- Go to Tools in the menu bar
- Click Language
- Select your preferred language and click OK
In Word for the Web:
- Click Review in the toolbar
- Select Spelling & Grammar → look for the language dropdown within that panel
- Note that Word Online has more limited language controls compared to the desktop app
How to Change the Display Language (Menus and Interface)
The display language controls what language Word's own buttons, menus, and prompts appear in. This is tied to your Microsoft 365 account settings and, on Windows, to your Office language pack installation.
On Windows:
- Open any Office app and go to File → Options
- Click Language in the left sidebar
- Under Office Display Language, you can set your preferred language
- If your language isn't listed, click Add a Language — this may prompt you to install a language pack
- Restart Word for changes to take effect
On Mac:
The display language in Word for Mac follows your macOS system language. To change it:
- Go to Apple menu → System Settings (or System Preferences on older macOS)
- Click General → Language & Region
- Add or reorder your preferred language
- Restart Word
Microsoft 365 subscribers can also manage display language preferences through their account settings at account.microsoft.com, which syncs across devices.
How to Change Language for a Specific Section of Text
Word lets you assign different proofing languages to different parts of the same document — useful for multilingual documents or quoted text in another language.
- Highlight the specific text passage
- Go to Review → Language → Set Proofing Language
- Choose the appropriate language for that selection
- Click OK
Word will then spell-check that section using the assigned language's dictionary while leaving the rest of the document unaffected.
Common Issues and What Causes Them
| Problem | Likely Cause |
|---|---|
| Spell check still flags correct words | Proofing language wasn't applied to all text |
| Language option is greyed out | Document may be protected or in compatibility mode |
| Display language didn't change after restart | Language pack may not be fully installed |
| Language resets every time you type | Default document language hasn't been updated |
| Language setting missing in Word Online | Feature is limited in browser version |
If spell check keeps reverting, check whether "Do not check spelling or grammar" is accidentally enabled in the Language dialog — this is a checkbox that sometimes gets toggled without users noticing.
The Variables That Shape Your Experience
How straightforward this process is depends on several factors:
- Subscription type: Microsoft 365 subscribers generally have access to more languages and easier installation of language packs than users with a one-time purchase of Office 2016/2019/2021
- Operating system: Windows and macOS handle display language differently, and the steps aren't identical
- Version of Word: The ribbon layout and menu locations have shifted across versions — Word 2016 looks different from Word 2021
- Document origin: Documents created on another computer or in another region sometimes carry embedded language settings that override your preferences
- IT/admin controls: On workplace or school-managed devices, language settings may be locked or require administrator action 🔒
What This Looks Like Across Different Setups
A personal Microsoft 365 user on Windows with a single language can typically change their proofing language in under a minute. Someone using a managed corporate device might find the option restricted. A user working with a legacy .doc file from another region may find language settings embedded in the document itself that need to be cleared first. And someone using Word Online will hit a more limited set of controls compared to the full desktop application.
The steps are consistent in theory — but how smoothly they work in practice depends heavily on which version of Word you're running, how your system is configured, and whether your account has the necessary permissions. Your own setup is the piece that determines which path applies. 🖥️