title: Alternative to synonym search over AWS managed Elasticsearch instance
body: <p>I am working a search implementation wherein I have to use the synonym filter but the challenge I am facing here is how do I make it dynamic, I can not pass the filters in the mapping itself. I need some way to externalize it. But apparently, its not supported in the AWS managed version.</p>
  <p>Is there any other way I can do it here?</p>