You can change the menu item title (also known as “Navigation Label“) to what you’d like it to read in the menu. To edit a page, post, category, or custom link menu item, just click the down arrow to the right of the item.
Once expanded, you can change the “Navigation Label” to whatever you’d like to show in the menu you’re editing. (By default, it pulls in the set page/post title).
When you’re done, click the blue “Save Menu” button.