doux odux duox udox oudx uodx doxu odxu dxou xdou oxdu xodu duxo udxo dxuo xduo uxdo xudo ouxd uoxd oxud xoud uxod xuod
Note: these 'words' (valid or invalid) are all the permutations of the word doux. These words are obtained by scrambling the letters in doux.