---
template: reference
foo: bar
---

# Definitions Schema

```
https://example.com/schemas/definitions
```

This is an example of using a `definitions` object within a schema.

It is imported using `allOf` and `$ref`.

And the description has line breaks.

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| Abstract | Extensible | Status | Custom Properties | Additional Properties | Defined In |
|----------|------------|--------|-------------------|-----------------------|------------|
| Can be instantiated | Yes | Experimental | Forbidden | Permitted | [definitions.schema.json](definitions.schema.json) |

# Definitions Properties

| Property | Type | Required | Defined by |
|----------|------|----------|------------|
| [@id](#@id) | `string` | Optional | Definitions (this schema) |
| [id](#id) | `string` | **Required** | Definitions (this schema) |
| [meta:id](#metaid) | `string` | Optional | Definitions (this schema) |
| `*` | any | Additional | this schema *allows* additional properties |

## @id

An `id` with an `@` in front of it. The `@` stands for "dot com"

`@id`
* is optional
* type: `string`
* defined in this schema

### @id Type


`string`
* format: `uri-reference` – URI Reference (according to [RFC3986](https://tools.ietf.org/html/rfc3986))






## id

A unique identifier given to every addressable thing.

`id`
* is **required**
* type: `string`
* defined in this schema

### id Type


`string`
* format: `uri` – Uniformous Resource Identifier (according to [RFC3986](http://tools.ietf.org/html/rfc3986))






## meta:id

An about ids. It is meta. If you are confused, send an email to the address specified in this property value.

`meta:id`
* is optional
* type: `string`
* defined in this schema

### meta:id Type


`string`
* format: `email` – email address (according to [RFC 5322, section 3.4.1](https://tools.ietf.org/html/rfc5322))