Hi, thank you for the reply. There are no words concerning, permanent, in that file, except for the terms of use section; i.e. 'permanently banned'. I have been messing around with some mods, maybe there's a chance that some Italian words have slipped in? Other than that, the site uses English and nothing else. Additionally, I think it's just with the Lightning theme, but will double check to be sure.
Here is what I have in the lang_main.php: which looks the same as you posted.
'No_new_posts_global_announcement' => 'No new [ Global Ann. ]',
'New_posts_global_announcement' => 'New [ Global Ann. ]',
'No_new_posts_announcement' => 'No new [ Announcement ]',
'New_posts_announcement' => 'New [ Announcement ]',
'No_new_posts_sticky' => 'No new [ Sticky ]',
'New_posts_sticky' => 'New [ Sticky ]',
'No_new_posts_locked' => 'No new [ Locked ]',
'New_posts_locked' => 'New [ Locked ]',
'No_new_posts' => 'No new posts',
'New_posts' => 'New posts',
'New_post' => 'New post',
'No_new_posts_hot' => 'No new [ Popular ]',
'New_posts_hot' => 'New [ Popular ]',
It is kind of odd, however.