* In functions.php 
  register_taxonomy('type', 'work', array(
		'labels' => array(
			'name'          => 'Types'
		,	'singular_name' => 'Type'
		,	'search_items'  => 'Search Types'
		,	'edit_item'     => 'Edit Type'
		,	'add_new_item'  => 'Add New Type'
		),	
'hierarchical' => true,	
'query_var'    => true,	
'rewrite'      => array('slug' => 'type-post', 'with_front' => false)
	)); // type taxonomy

==> After change, plear update options permalink on dashboard