uncus nucus ucnus cunus ncuus cnuus unucs nuucs uuncs uuncs nuucs unucs ucuns cuuns uucns uucns cuuns ucuns ncuus cnuus nucus uncus cunus ucnus uncsu nucsu ucnsu cunsu ncusu cnusu unscu nuscu usncu suncu nsucu snucu ucsnu cusnu uscnu sucnu csunu scunu ncsuu cnsuu nscuu sncuu csnuu scnuu unusc nuusc uunsc uunsc nuusc unusc unsuc nusuc usnuc sunuc nsuuc snuuc uusnc uusnc usunc suunc usunc suunc nusuc unsuc nsuuc snuuc usnuc sunuc ucusn cuusn uucsn uucsn cuusn ucusn ucsun cusun uscun sucun csuun scuun uuscn uuscn usucn suucn usucn suucn cusun ucsun csuun scuun uscun sucun ncusu cnusu nucsu uncsu cunsu ucnsu ncsuu cnsuu nscuu sncuu csnuu scnuu nuscu unscu nsucu snucu usncu suncu cusnu ucsnu csunu scunu uscnu sucnu
Note: these 'words' (valid or invalid) are all the permutations of the word uncus. These words are obtained by scrambling the letters in uncus.