How to change the “posts” label to “articles”

Nothing complicated: Open your functions.php file, paste the code below in it. Save the file, and you’re done!

add_filter('gettext',  'change_post_to_article');
add_filter('ngettext',  'change_post_to_article');

function change_post_to_article($translated) {
     $translated = str_ireplace('Post',  'Article',  $translated);
     return $translated;
}

Thanks to Smashing Magazine for the cool tip!