anchor.diff:      </lst>
     </lst>
   </lst>
  +----
  +
  +JSON:
  +
  +[source,json]
  +----
  +{
  +  "terms": {
  +    "field": [
  +      "termA",
  +      {
  +        "df": 22,
  +        "ttf": 73
  +      }
  +    ]
  +  }
  +}
   ----
   
   `terms.upper`::
  
positive.code: 
  `terms.ttf`::
  If set to true, returns both `df` (docFreq) and `ttf` (totalTermFreq) statistics for each requested term in `terms.list`. In this case, the response format is:
  +
  [source,xml]
  ----
  <lst name="terms">
  
negative.code: Fetches the document frequency for a comma delimited list of terms. Terms are always returned in index order. If `terms.ttf` is set to true, also returns their total term frequency. If multiple `terms.fl` are defined, these statistics will be returned for each term in each requested field.
  +
  Example: `terms.list=termA,termB,termC`
  +
  NOTE: When `terms.list` is specified, then terms are always sorted by `index`. Except `terms.ttf`, none of other terms parameters are supported when `terms.list` is specified.
  
  `terms.limit`::
  Specifies the maximum number of terms to return. The default is `10`. If the limit is set to a number less than 0, then no maximum limit is enforced. Although this is not required, either this parameter or `terms.upper` must be defined.
  