--- a/elasticsearch.rst	Fri Feb 09 23:04:23 2018 +0200
+++ b/elasticsearch.rst	Fri Feb 09 23:08:13 2018 +0200
@@ -119,7 +119,9 @@
 ES Query DSL
 ============
 
-``_exists_:<field>``, ``_missing_:<field>``::
+``_exists_:<field>`` for testing field existence, ``_missing_:<field>`` for testing field absence.
+
+``-<field>:<val>`` or ``-field:"<val>"`` for excluding field value.
 
 https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-exists-query.html
   Exists Query