diff --git a/web/thesauruses/kotlin/1.5/classes.json b/web/thesauruses/kotlin/1.5/classes.json
new file mode 100644
index 000000000..4866358e4
--- /dev/null
+++ b/web/thesauruses/kotlin/1.5/classes.json
@@ -0,0 +1,107 @@
+{
+  "meta": {
+    "language": "kotlin",
+    "language_version": "1.5",
+    "language_name": "Kotlin",
+    "structure": "classes"
+  },
+  "concepts": {
+    "normal_class": {
+      "code": "class ClassName {\n    // Class body containing properties and methods\n}",
+      "name": "Normal class"
+    },
+    "abstract_class": {
+      "code": "abstract class ClassName {\n    // Class body containing abstract methods\n}",
+      "name": "Abstract class"
+    },
+    "interface": {
+      "code": "interface InterfaceName {\n    // Interface body containing method declarations\n}",
+      "name": "Interface"
+    },
+    "read_only_class": {
+      "code": "class ClassName(val property: Type) {\n    // Only getter methods are provided\n}",
+      "name": "Read-only class"
+    },
+    "static_class": {
+      "code": "class ClassName {\n    companion object {\n        // Static properties and methods\n    }\n}",
+      "name": "Static class"
+    },
+    "inner_class": {
+      "not-implemented": true,
+      "name": "Inner class"
+    },
+    "packages": {
+      "comment": "Use 'import' keyword to include packages.",
+      "not-implemented": true,
+      "name": "Packages"
+    },
+    "class_with_generic_type": {
+      "code": "class ClassName<T> {\n    // Class body with generic type T\n}",
+      "name": "Class with a generic type"
+    },
+    "private_variables": {
+      "code": "private var variableName: Type = value",
+      "name": "Defining private variables"
+    },
+    "protected_variables": {
+      "code": "protected var variableName: Type = value",
+      "name": "Defining protected variables"
+    },
+    "public_variables": {
+      "code": "var variableName: Type = value",
+      "name": "Defining public variables"
+    },
+    "static_variables": {
+      "code": "companion object {\n    var variableName: Type = value\n}",
+      "name": "Defining static variables"
+    },
+    "private_functions": {
+      "code": "private fun methodName() {\n    // Method body\n}",
+      "name": "Defining private functions"
+    },
+    "protected_functions": {
+      "code": "protected fun methodName() {\n    // Method body\n}",
+      "name": "Defining protected functions"
+    },
+    "public_functions": {
+      "code": "fun methodName() {\n    // Method body\n}",
+      "name": "Defining public functions"
+    },
+    "static_functions": {
+      "code": "companion object {\n    fun methodName() {\n        // Method body\n    }\n}",
+      "name": "Defining static functions"
+    },
+    "extends_class": {
+      "code": "class ChildClassName : ParentClassName() {\n    // Class body containing variables and methods\n}",
+      "name": "Class that inherits/extends another class"
+    },
+    "extending_interface": {
+      "code": "class ClassName : InterfaceName {\n    // Class body containing variables and methods\n}",
+      "name": "Class/Interface that inherits/extends another class/interface"
+    },
+    "calling_superclass_functions": {
+      "code": "super.methodName()",
+      "name": "Calling a superclass function"
+    },
+    "overriding_superclass_functions": {
+      "code": "class ChildClassName : ParentClassName() {\n    override fun methodName() {\n        // Overriding method body\n    }\n}",
+      "name": "Overriding a superclass function"
+    },
+    "instantiating_object": {
+      "code": "val objectName = ClassName()",
+      "name": "Instantiating a new object"
+    },
+    "instantiating_polymorphic_object": {
+      "code": "val objectName: InterfaceName = ClassName()",
+      "name": "Instantiating a polymorphic object"
+    },
+    "implement_constructor": {
+      "code": "class ClassName(val property: Type) {\n    init {\n        // Constructor body\n    }\n}",
+      "name": "Implementing a class constructor"
+    },
+    "implement_deconstructor": {
+      "not-implemented": true,
+      "name": "Implementing a class deconstructor"
+    }
+  }
+}
\ No newline at end of file
diff --git a/web/thesauruses/meta_info.json b/web/thesauruses/meta_info.json
index fc7bc6cae..787c1409f 100644
--- a/web/thesauruses/meta_info.json
+++ b/web/thesauruses/meta_info.json
@@ -10,6 +10,7 @@
     "haskell": "Haskell",
     "java": "Java",
     "javascript": "JavaScript",
+    "kotlin": "Kotlin",
     "lua": "Lua",
     "nim": "Nim",
     "objectivec": "Objective-C",