This form lets you add/edit the existing language tags/translation. On one side English counterpart is shown and on another side, the translation in your default language. The English counterpart would help you identify what type of tag is it. For ex: 'Add Listing' tag is shown on the add listing form (on button at the bottom and at the top). It is recommended that you update the translation as translations shown there may not be perfect. Moreover try to reduce the length of translation as this would help preserve your website formatting.
If you add a new category or sub category then you'll have to add the tag and its translation on this page otherwise the category won't appear in the search form or add listing form.
For ex: if you're adding a new category 'Test' and your default language of site is French then you'll have to add it on language tags page like this
Created with the Personal Edition of HelpNDoc: Easy to use tool to create HTML Help files and Help web sites