units nuits uints iunts niuts inuts untis nutis utnis tunis ntuis tnuis uitns iutns utins tuins ituns tiuns nitus intus ntius tnius itnus tinus unist nuist uinst iunst niust inust unsit nusit usnit sunit nsuit snuit uisnt iusnt usint suint isunt siunt nisut insut nsiut sniut isnut sinut untsi nutsi utnsi tunsi ntusi tnusi unsti nusti usnti sunti nsuti snuti utsni tusni ustni sutni tsuni stuni ntsui tnsui nstui sntui tsnui stnui uitsn iutsn utisn tuisn itusn tiusn uistn iustn usitn suitn isutn siutn utsin tusin ustin sutin tsuin stuin itsun tisun istun situn tsiun stiun nitsu intsu ntisu tnisu itnsu tinsu nistu instu nsitu snitu isntu sintu ntsiu tnsiu nstiu sntiu tsniu stniu itsnu tisnu istnu sitnu tsinu stinu
Note: these 'words' (valid or invalid) are all the permutations of the word units. These words are obtained by scrambling the letters in units.