dropSynonym

<changeSet  author="liquibase-docs"  id="dropSynonym-example">  
    <pro:dropSynonym  objectType="A String"  
            private="true"  
            synonymName="A String"/>  
</changeSet>

changeSet:  
  id:  dropSynonym-example  
  author:  liquibase-docs  
  changes:  
  -  dropSynonym:  
      objectType:  A String  
      private:  true  
      synonymName:  A String

{
  "changeSet":  {
    "id":  "dropSynonym-example",
    "author":  "liquibase-docs",
    "changes":  [{
      "dropSynonym":  {
        "objectType":  "A String",
        "private":  true,
        "synonymName":  "A String"
      }
    }]
  }
}

DROP  SYNONYM  [A  String];