If you go to the theme editor and open the theme functions file you can find the term you want to change under it’s register_taxonomy, then just change the label.
For example to change the FAQ category to Languages you would go to line 281:
register_taxonomy(‘faq_category’, ‘avada_faq’, array(‘hierarchical’ => true, ‘label’ => ‘Categories’, ‘query_var’ => true, ‘rewrite’ => true));
and change ‘label’ => ‘Categories’, to
‘label’ => ‘Languages’,