If the Word synonym library function does not work properly, you can follow the following steps to troubleshoot: 1. Check whether the document language settings are correct and ensure that you use a language that supports synonym function; 2. Try to call the synonym function using the shortcut key Shift F7 or the right-click menu. If it is invalid, you can reset the Word settings or repair the Office installation; 3. Enter safe mode to start Word and clear the cache to eliminate plug-in or cache interference; 4. Reinstall Office and confirm that the language assistance tools and other components have been installed correctly. In most cases, the problem stems from a setup error or missing components, and step-by-step troubleshooting usually restores the function.

If you find that thesaurus function does not work properly when using Word, this will indeed affect writing efficiency. This problem may be caused by several reasons, but in most cases it can be investigated and solved.

1. Check whether Word's language settings are correct

Word's synonyms feature depends on the language settings used by the document. If the language of the current paragraph or word is not the language you expect (such as mistakenly setting it to an unsupported language), synonyms suggestion may not pop up.

• Click the "Review" tab → Check "Language" settings
• Or select text → right click → "Language" → Set to "English (US)" or other languages you use
• Make sure that spell checking and synonym support for the corresponding language is installed

Sometimes even if the system is in English, the document may be misidentified as another language, especially after copying and pasting the content.

2. Try whether the shortcut keys or menu operations are consistent

By default, you can turn on the synonym function in the following ways:

• Right-click a word → "Synonyms" option
• Or use the shortcut key Shift F7

If the right-click menu does not have a "synonym" option, it may be that Word's context menu has been modified. You can try resetting Word's custom settings, or fixing Office installation.

3. Word plugin conflict or caching issues

Sometimes third-party plug-ins, add-ins, or cache files can interfere with Word's built-in features.

You can try:

• Enter safe mode when starting Word (hold Ctrl key or run winword /safe ) to eliminate plug-in influence
• Clear Word's temporary cache (usually located in %appdata%\Microsoft\Templates )

If synonyms function properly in safe mode, you can disable the add-ons one by one to troubleshoot conflict sources.

4. Reinstall Office or enable optional components

If you confirm that the settings are OK, but the function still cannot be used, it may be that some components of Word are not installed correctly.

You can try:

• Open Control Panel → Programs and Features → Locate Microsoft Office → Select Change
• Select "Add or Remove Program Features" in the installation interface
• Make sure that language-related components such as Microsoft Office Single Language Assistant in Office Tools are checked and installed

This step is especially suitable for downloading and installing versions of Office from the Internet, and some language tools may not be included by default.

Basically, these common reasons and treatment methods. In many cases, the problem is not that Word itself is broken, but that there is a small error in the setup or environment. If you encounter this situation, don’t be too anxious. If you check it step by step, most of them can be restored to normal use.

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