# `SynonymsSynonymRule` [interface-SynonymsSynonymRule]

| Name | Type | Description |
| - | - | - |
| `id` | [Id](./Id.md) | The identifier for the synonym rule. If you do not specify a synonym rule ID when you create a rule, an identifier is created automatically by Elasticsearch. |
| `synonyms` | [SynonymsSynonymString](./SynonymsSynonymString.md) | The synonyms that conform the synonym rule in Solr format. |