diff --git a/docs/09-terminology.md b/docs/09-terminology.md
index eb017a78..a2858320 100644
--- a/docs/09-terminology.md
+++ b/docs/09-terminology.md
@@ -1,4 +1,5 @@
 # Glossary
 
-- **Item**: 
+- **Item**: a virtual object that represents data
 - **Panel Shells**: 3D UIs around 2D apps
+- ...