usnoc sunoc unsoc nusoc snuoc nsuoc usonc suonc uosnc ousnc sounc osunc unosc nuosc uonsc ounsc nousc onusc snouc nsouc sonuc osnuc nosuc onsuc usnco sunco unsco nusco snuco nsuco uscno sucno ucsno cusno scuno csuno uncso nucso ucnso cunso ncuso cnuso sncuo nscuo scnuo csnuo ncsuo cnsuo usocn suocn uoscn ouscn soucn osucn uscon sucon ucson cuson scuon csuon uocsn oucsn ucosn cuosn ocusn cousn socun oscun scoun csoun ocsun cosun unocs nuocs uoncs ouncs noucs onucs uncos nucos ucnos cunos ncuos cnuos uocns oucns ucons cuons ocuns couns nocus oncus ncous cnous ocnus conus snocu nsocu soncu osncu noscu onscu sncou nscou scnou csnou ncsou cnsou socnu oscnu sconu csonu ocsnu cosnu nocsu oncsu ncosu cnosu ocnsu consu
Note: these 'words' (valid or invalid) are all the permutations of the word usnoc. These words are obtained by scrambling the letters in usnoc.