anchor.diff:  // end::routing-def[]
   --
   
  +[[glossary-runtime-fields]] runtime field ::
  +// tag::runtime-fields-def[]
  +A runtime field is a field that is evaluated at query time. You access runtime
  +fields from the search API like any other field, and {es} sees runtime fields
  +no differently. You can define runtime fields in the
  +{ref}/runtime-mapping-fields.html[index mapping] or in the
  +{ref}/runtime-search-request.html[search request].
  +// end::runtime-fields-def[]
  +
   [[glossary-searchable-snapshot]] searchable snapshot ::
   // tag::searchable-snapshot-def[]
   A <<glossary-snapshot, snapshot>> of an index that has been mounted as a
  
positive.code: 
  [[glossary-hot-tier]] hot tier::
  // tag::hot-tier-def[]
  A <<glossary-data-tier, data tier>> that contains nodes that handle the indexing load 
  for time series data such as logs or metrics and hold your most recent, 
  most-frequently-accessed data.
  // end::hot-tier-def[]
  
  
negative.code: 
  [[glossary-hidden-index]] hidden index ::
  // tag::hidden-index-def[]
  An index that is excluded by default when you access indices using a wildcard expression.
  You can specify the `expand_wildcards` parameter to include hidden indices.
  Note that hidden indices _are_ included if the wildcard expression starts with a dot, for example `.watcher-history*`.
  // end::hidden-index-def[]
  