Hook

Change registered Taxonomies labels

add_filter( 'init', 'custom_registered_taxonomy_admin_labels' );

function custom_registered_taxonomy_admin_labels() {
	global $wp_taxonomies;
	$labels = &$wp_taxonomies['your_taxonomy']->labels;//change to your taxonomy slug
	$labels->name = 'NAME';
	$labels->singular_name = 'SING_NAME';
	$labels->add_new = 'Add NAME';
	$labels->add_new_item = 'Add NAME';
	$labels->edit_item = 'Edit NAME';
	$labels->new_item = 'NAME';
	$labels->view_item = 'View NAME';
	$labels->search_items = 'Search NAME';
	$labels->not_found = 'No NAME found';
	$labels->not_found_in_trash = 'No NAME found in Trash';
	$labels->all_items = 'All NAMES';
	$labels->menu_name = 'NAMES';
	$labels->name_admin_bar = 'NAME';
}