diff --git a/ROADMAP.md b/ROADMAP.md
index c335bab..b7b53a1 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -2,8 +2,8 @@
 
 - [ ] Functions
 - [ ] imports
-- [ ] scopes of visibility
-- [ ] types conversion
+- [x] scopes of visibility
+
 - [ ] methods for arrays
 - [ ] methods for strings
 - [ ] methods for objects
@@ -11,6 +11,10 @@
 - [x] yaml support?
 - [ ] command execution function
 - [ ] function for random
-- [ ] delete variable
+- [x] delete variable
+- [ ] types conversion
+- [ ] checking variable type
+- [ ] checking for the existence of a variable
+- [ ] create scopes without if, else, loop
 
 and something else
diff --git a/doc/main.md b/doc/main.md
index a92cbfd..6205e2e 100644
--- a/doc/main.md
+++ b/doc/main.md
@@ -138,3 +138,17 @@ works only with numbers (and variables with number type)
   { print: ["Bye, ", { var: "name" }, "!"] },
 ]
 ```
+
+## Delete variable
+
+```json5
+[
+  {
+    let: {
+      name: { input: "Your name: " },
+    },
+  },
+  { print: ["Bye, ", { var: "name" }, "!"] },
+  { delete: "name" }, //deletes variable from memory
+]
+```