For AI agents: a documentation index is available at https://www.elastic.co/docs/api/doc/elasticsearch/llms.txt. Markdown versions of each page are available by sending an Accept: text/markdown header, or by appending .md to the page URL.

Synonyms

The synonyms management API provides a convenient way to define and manage synonyms in an internal system index. Related synonyms can be grouped in a "synonyms set". Create as many synonym sets as you need.

Learn more about synonyms.

Operations quick access

GET /_synonyms/{id}

PUT /_synonyms/{id}

DELETE /_synonyms/{id}

GET /_synonyms/{set_id}/{rule_id}

PUT /_synonyms/{set_id}/{rule_id}

DELETE /_synonyms/{set_id}/{rule_id}

GET /_synonyms