What I did is create a folder called Dictionaries in my SD card, so it's /media/mmc1/Dictionaries, and then extract the dictionary files I've downloaded into it, like from here for example: http://stardict.sourceforge.net/Dict...w.dict.org.php

Then I create a symlink to the folder in x-term with this command:
That way you can add as much dictionaries as you want without worrying about hogging too much of the N800's memory.