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