> For the complete documentation index, see [llms.txt](https://awsnotes.dendron.so/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://awsnotes.dendron.so/machine-learning/amazon-kendra/topics/adding-custom-synonyms-to-an-index.md).

# Adding custom synonyms to an index

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This page was generated from content adapted from the [AWS Developer Guide](https://github.com/awsdocs/amazon-kendra-developer-guide.git)
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## Updating a thesaurus

* **Note**\
  If there are validation or syntax errors in the thesaurus file, the previously uploaded thesaurus file is retained.