diff --git a/technical-reports/format/terminology.md b/technical-reports/format/terminology.md
index b296121..5f1889f 100644
--- a/technical-reports/format/terminology.md
+++ b/technical-reports/format/terminology.md
@@ -21,9 +21,10 @@ For example:
 
 - Value
 - Type
-- Metadata
 - Description
 
+Additional metadata may be added by tools and design systems to extend the format as needed.
+
 ## <dfn>Design tool</dfn>
 
 A design tool is a tool for visual design creation and editing.