nache anche ncahe cnahe acnhe canhe nahce anhce nhace hnace ahnce hance nchae cnhae nhcae hncae chnae hcnae achne cahne ahcne hacne chane hcane naceh anceh ncaeh cnaeh acneh caneh naech anech neach enach aench eanch nceah cneah necah encah cenah ecnah acenh caenh aecnh eacnh ceanh ecanh nahec anhec nhaec hnaec ahnec hanec naehc anehc neahc enahc aenhc eanhc nheac hneac nehac enhac henac ehnac ahenc haenc aehnc eahnc heanc ehanc nchea cnhea nhcea hncea chnea hcnea nceha cneha necha encha cenha ecnha nheca hneca nehca enhca henca ehnca chena hcena cehna echna hecna ehcna achen cahen ahcen hacen chaen hcaen acehn caehn aechn eachn ceahn ecahn ahecn haecn aehcn eahcn heacn ehacn chean hcean cehan echan hecan ehcan
Note: these 'words' (valid or invalid) are all the permutations of the word nache. These words are obtained by scrambling the letters in nache.