diff --git a/glossary/XML.md b/glossary/XML.md
new file mode 100644
index 000000000..05bbaefa2
--- /dev/null
+++ b/glossary/XML.md
@@ -0,0 +1,4 @@
+### XML
+
+XML stands for eXtensible Markup Language and is a generic markup language specified by the W3C. 
+XML documents are plaintext documents structured with user-defined tags, surrounded by `<>` and optionally extended with attributes.