diff --git a/core/elasticsearch/__init__.py b/core/elasticsearch/__init__.py
index 3babf66d..d0d0c948 100644
--- a/core/elasticsearch/__init__.py
+++ b/core/elasticsearch/__init__.py
@@ -192,6 +192,7 @@ COMMON_ANALYSIS = {
             "encoder": "double_metaphone",
             "replace": False,
         },
+        "synonym_filter": {"type": "synonym", "synonyms_path": "analysis/synonyms.txt"},
         "english_stop": {"type": "stop", "stopwords": "_english_"},
     },
     "analyzer": {
@@ -207,6 +208,10 @@ COMMON_ANALYSIS = {
             "tokenizer": "standard",
             "filter": ["lowercase", "asciifolding", "ngram_filter"],
         },
+        "synonym_analyzer": {
+            "tokenizer": "standard",
+            "filter": ["lowercase", "asciifolding", "synonym_filter"],
+        },
         "name_phonetic": {
             "tokenizer": "standard",
             "filter": ["lowercase", "asciifolding", "double_metaphone"],