# Data Glossary

> **Private preview:** The Data Glossary is currently in private preview. To enable this feature for your account, please contact support.

The Data Glossary lets you define and manage **business terminology** and definitions for your organization. Terms are organized by **domains**, so you can scope definitions to different parts of your data model (e.g., Sales, Finance, Marketing).

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## What Is the Data Glossary?

A **glossary term** is a named business concept with:

* **Name** — The canonical term (e.g., "Customer", "ARR", "Churn")
* **Description** — What it means in your organization
* **Domain** — Which domain it belongs to (terms are scoped to domains)
* **Owner** — Who is responsible for the definition
* **Synonyms** — Alternative names (e.g., "Client" for "Customer")
* **Tags** — Labels for filtering and grouping

Glossary terms appear as resources in the data graph and can be used by the AI assistant and EQL to understand your organization's vocabulary.

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## Creating a Term

1. Go to **Data Glossary** in the navigation.
2. Click **Add term**.
3. Fill in:
   * **Name** — Required, unique within the domain
   * **Domain** — Select the domain (create domains in Account Settings → Domains first)
   * **Description** — Required
   * **Owner** — Defaults to you if left empty
   * **Synonyms** — Optional list of alternative names
   * **Tags** — Optional labels
4. Click **Create**.

You must have at least one domain before creating terms. Create domains in **Account Settings → Domains**.

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## AI-Assisted Suggestions

When editing a glossary term, Euno can help suggest glossary content from related data assets.

* **Suggest description** — Uses the term's selected related resources or defining EQLs to draft a description. The draft is added to the description field when the AI run finishes, so review it before saving.
* **Suggest related resources** — Uses the term name, description, domain, synonyms, and tags to find likely related data assets.
* **Stop** — Appears while an AI suggestion is running. Use it to cancel the current AI run before it applies a result.

If a suggestion button is disabled, the AI suggestions box explains what is missing. For example, you may need to select a domain, add related resources, add a defining EQL, or save the term before running the suggestion.

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## Editing and Deleting Terms

* **Edit** — Click the menu (⋮) on a term and choose **Edit**. Update any field and save.
* **Delete** — Click the menu and choose **Delete**. Confirm to remove the term.

When editing, you can move a term to a different domain. The name and synonyms must remain unique within the new domain.

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## Searching and Filtering

* **Search** — Type in the search box to match term names or synonyms (case-insensitive).
* **Domain filter** — Filter by one or more domains.
* **Owner filter** — Filter by owner.
* **Tags filter** — Filter by tags (AND logic: term must have all selected tags).

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## Export

Click **Export** to download the glossary as a ZIP file containing YAML files, one per domain. Use this for backup, version control, or sharing definitions across environments.

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## Related Concepts

* **Domains** — Logical groupings of resources. Glossary terms belong to domains. See [Domains](/setup-configuration/domains.md).
* **Context Issues** — Capture missing institutional knowledge. Glossary terms help encode that knowledge. See [Context Issues](/using-euno/context-issues.md).


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