diff --git a/cspell.json b/cspell.json
index 877d5c905..1fed86e32 100644
--- a/cspell.json
+++ b/cspell.json
@@ -7,6 +7,23 @@
         "addWords": true
         }
     ],
+    "words": [
+      "!addon"
+    ],
+    "ignoreRegExpList": [
+      "\\.addon",
+      "addon\\.",
+      "\\(addon\\)",
+      "@addon",
+      "_addon",
+      "addon\\w+",
+      "addon_",
+      "addon\"",
+      "addon =",
+      "$\\s+addon^",
+      "\\|addon\\|",
+      "addon$"
+    ],
     "language": "en",
     "files": ["**/*.rb", "**/*.md", "**/*.markdown"],
     "ignorePaths": [