"Unknown Words" dialog box

The list contains the unknown words,  i.e. the words which were not found by the system during document translation in the attached dictionaries. You can sort this list by alphabet or by frequency, if you click the appropriate column.

Buttons:

Add to Dictionary Allows you to enter the selected unknown word to the user dictionary 
Preserve Moves the selected word or several words to the list of  preserved words
Delete Removes the word from the list
Delete All Removes all the words from the list

Commands:

Dictionaries Opens the Dictionaries dialog which allows you to view and edit the list of dictionaries used during document translation
Save Saves the list of unknown words in a text file