Code Element Pn

Change Posts Menu Title in WordPress Admin

You can change the default WordPress Post menu title using the native admin_menu action hook.

Replace:

New Name: with the name of your choice

/**
 * Change name of 'Posts' in WP Admin
 */
add_action( 'admin_menu', function () {
    global $menu;
    global $submenu;
    $menu[5][0] = 'New Name';
    $submenu['edit.php'][5][0] = 'All New Name';
});