> ## Documentation Index
> Fetch the complete documentation index at: https://gobl-regime-code.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Definition

Definition defines properties of a key, code, or other value that has a specific meaning or utility.

## Schema ID

`https://gobl.org/draft-0/cbc/definition`

## Properties

| Title       | Property  | Type                                               | Req. | Description                                                                                                                         |
| ----------- | --------- | -------------------------------------------------- | ---- | ----------------------------------------------------------------------------------------------------------------------------------- |
| Key         | `key`     | [cbc.Key](/draft-0/cbc/key)                        |      | Key being defined.                                                                                                                  |
| Code        | `code`    | [cbc.Code](/draft-0/cbc/code)                      |      | Code this definition represents.                                                                                                    |
| Name        | `name`    | [i18n.String](/draft-0/i18n/string)                | true | Short name for the key.                                                                                                             |
| Description | `desc`    | [i18n.String](/draft-0/i18n/string)                |      | Description offering more details about when the key should be used.                                                                |
| Meta        | `meta`    | [cbc.Meta](/draft-0/cbc/meta)                      |      | Meta defines any additional details that may be useful or associated with the key.                                                  |
| Sources     | `sources` | array of [cbc.Source](/draft-0/cbc/source)         |      | Where the information was sourced from.                                                                                             |
| Values      | `values`  | array of [cbc.Definition](/draft-0/cbc/definition) |      | Values defines the possible values associated with the key, which themselves will either be keys or codes depending on the context. |
| Pattern     | `pattern` | string                                             |      | Pattern is used to validate the key value instead of using a fixed value from the code or key definitions.                          |
| Code Map    | `map`     | [cbc.CodeMap](/draft-0/cbc/code_map)               |      | Map helps map local keys to specific codes, useful for converting the described key into a local code.                              |