diff --git a/_data/glossary/init-container.yaml b/_data/glossary/init-container.yaml
new file mode 100644
index 0000000000..9e6904739e
--- /dev/null
+++ b/_data/glossary/init-container.yaml
@@ -0,0 +1,8 @@
+id: init-container
+name: Init Container
+tags:
+- fundamental
+short-description: >
+  One or more initialization containers that must run to completion before any app containers run. 
+long-description: >
+  Initialization (init) containers are like regular app containers, with one difference: init containers must run to completion before any app containers can start. Init containers run in series: each init container must run to completion before the next init container begins.