sokah oskah skoah ksoah oksah kosah soakh osakh saokh asokh oaskh aoskh skaoh ksaoh sakoh askoh kasoh aksoh okash koash oaksh aoksh kaosh akosh sokha oskha skoha ksoha oksha kosha sohka oshka shoka hsoka ohska hoska skhoa kshoa shkoa hskoa khsoa hksoa okhsa kohsa ohksa hoksa khosa hkosa soahk osahk saohk asohk oashk aoshk sohak oshak shoak hsoak ohsak hosak sahok ashok shaok hsaok ahsok hasok oahsk aohsk ohask hoask ahosk haosk skaho ksaho sakho askho kasho aksho skhao kshao shkao hskao khsao hksao sahko ashko shako hsako ahsko hasko kahso akhso khaso hkaso ahkso hakso okahs koahs oakhs aokhs kaohs akohs okhas kohas ohkas hokas khoas hkoas oahks aohks ohaks hoaks ahoks haoks kahos akhos khaos hkaos ahkos hakos
Note: these 'words' (valid or invalid) are all the permutations of the word sokah. These words are obtained by scrambling the letters in sokah.