curl --request PUT \
  --url https://waves-api.smallest.ai/api/v1/pronunciation-dicts \
  --header 'Content-Type: application/json' \
  --data '{
  "id": "64f1234567890abcdef12345",
  "items": [
    {
      "word": "mysql",
      "pronunciation": "my-sequel"
    }
  ]
}'

{
  "id": "64f1234567890abcdef12345",
  "items": [
    {
      "word": "mysql",
      "pronunciation": "my-sequel"
    },
    {
      "word": "goodbye",
      "pronunciation": "goodbai"
    }
  ]
}