I've tried to use some of the examples on
http://reference.wolfram.com/language/ref/DictionaryLookup.html, but get an error message:
In[1]:= DictionaryLookup["abb" ~~ ___]
ReadList::nffil: File not found during ReadList[/opt/Wolfram/WolframEngine/10.0/SystemFiles/Dictionaries/English/dictionary.txt, String].
The /opt/Wolfram/WolframEngine/10.0/SystemFiles/Dictionaries folder doesn't exist at all.
Am I missing something, and should I install additional files? I'm running the most recent version of Raspbian, and upgraded all packages, including Wolfram to the latest versions.