diff --git a/src/components/tieredmenu/TieredMenu.d.ts b/src/components/tieredmenu/TieredMenu.d.ts
index bf1e7e7c4..de108b182 100755
--- a/src/components/tieredmenu/TieredMenu.d.ts
+++ b/src/components/tieredmenu/TieredMenu.d.ts
@@ -1,24 +1,98 @@
-interface TieredMenuProps {
-    popup?: boolean;
-    model?: any[];
-    appendTo?: string;
-    autoZIndex?: boolean;
-    baseZIndex?: number;
-    exact?: boolean;
+import { VNode } from 'vue';
+import { ClassComponent, GlobalComponentConstructor } from '../ts-helpers';
+import { MenuItem } from '../menuitem';
+
+type TieredMenuAppandToType = 'body' | 'self' | string | undefined;
+
+export interface TieredMenuProps {
+    /**
+     * An array of menuitems.
+     */
+    model?: MenuItem[] | undefined;
+    /**
+     * Defines if menu would displayed as a popup.
+     */
+    popup?: boolean | undefined;
+    /**
+     * A valid query selector or an HTMLElement to specify where the overlay gets attached.
+     * @see TieredMenuAppandToType
+     * Default value is 'body'.
+     */
+    appendTo?: TieredMenuAppandToType;
+    /**
+     * Whether to automatically manage layering.
+     * Default value is true.
+     */
+    autoZIndex?: boolean | undefined;
+    /**
+     * Base zIndex value to use in layering.
+     * Default value is 0.
+     */
+    baseZIndex?: number | undefined;
+    /**
+     * Whether to apply 'router-link-active-exact' class if route exactly matches the item path.
+     * Default value is true.
+     */
+    exact?: boolean | undefined;
 }
 
-interface TieredMenuItemSlotInterface {
-    item: any;
+export interface TieredMenuSlots {
+    /**
+     * Custom content for each item.
+     * @param {Object} scope - item slot's params.
+     */
+    item: (scope: {
+        /**
+         * Menuitem instance
+         */
+        item: MenuItem;
+    }) => VNode[];
 }
 
-declare class TieredMenu {
-    $props: TieredMenuProps;
-    toggle(event: Event): void;
-    show(event: Event, target?: any): void;
+export declare type TieredMenuEmits = {
+}
+
+declare class TieredMenu extends ClassComponent<TieredMenuProps, TieredMenuSlots, TieredMenuEmits> {
+    /**
+     * Toggles the visibility of the overlay.
+     * @param {Event} event - Browser event
+     *
+     * @memberof TieredMenu
+     */
+    toggle: (event: Event) => void;
+    /**
+     * Shows the overlay.
+     * @param {Event} event - Browser event
+     * @param {*} [target] - Optional target if event.target would not be used
+     *
+     * @memberof TieredMenu
+     */
+    show: (event: Event, target?: any) => void;
+    /**
+     * Hides the overlay.
+     *
+     * @memberof TieredMenu
+     */
     hide(): void;
-    $slots: {
-        item: TieredMenuItemSlotInterface;
+}
+
+declare module '@vue/runtime-core' {
+    interface GlobalComponents {
+        TieredMenu: GlobalComponentConstructor<TieredMenu>
     }
 }
 
+/**
+ *
+ * TieredMenu displays submenus in nested overlays.
+ *
+ * Helper API:
+ *
+ * - [MenuItem](https://www.primefaces.org/primevue/showcase/#/menumodel)
+ *
+ * Demos:
+ *
+ * - [TieredMenu](https://www.primefaces.org/primevue/showcase/#/tieredmenu)
+ *
+ */
 export default TieredMenu;