smileBeda

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';

smileBeda

add_filter('get_the_excerpt', 'allow_html_in_excerpt');

function allow_html_in_excerpt($text) { // Fakes an excerpt if needed
    global $post;
    if ( '' == $text ) {
        $text = get_the_content('');
        $text = apply_filters('the_content', $text);
        $text = str_replace('\]\]\>', ']]>', $text);
        /*just add all the tags you want to appear in the excerpt --
        be sure there are no white spaces in the string of allowed tags */

smileBeda

remove_filter('get_the_excerpt', 'wp_trim_excerpt');

smileBeda

add_filter( 'post_link', 'add_custom_base_to_post_links', 10, 3 );

function add_custom_base_to_post_links( $post_link, $post, $leavename ) {
    if ( 'post' != $post->post_type || 'publish' != $post->post_status ) {
        return $post_link;
    }
    $post_link = str_replace( '/' . $post->post_name . '/', '/your_custom_base/' . $post->post_name . '/', $post_link );
    return $post_link;
}

smileBeda

add_filter( 'register_post_type_args', 'rename_registered_post_types', 999, 2 );

function rename_registered_post_types( $args, $post_type ){
    if( 'post' == $post_type ){//your post type to rename
		    $args['rewrite']['slug'] = 'your_custom_slug';
    }
    return $args;
}