oaken aoken okaen koaen akoen kaoen oaekn aoekn oeakn eoakn aeokn eaokn okean koean oekan eokan keoan ekoan akeon kaeon aekon eakon keaon ekaon oakne aokne okane koane akone kaone oanke aonke onake noake anoke naoke oknae konae onkae nokae knoae nkoae aknoe kanoe ankoe nakoe knaoe nkaoe oaenk aoenk oeank eoank aeonk eaonk oanek aonek onaek noaek anoek naoek oenak eonak oneak noeak enoak neoak aenok eanok aneok naeok enaok neaok okena koena oekna eokna keona ekona oknea konea onkea nokea knoea nkoea oenka eonka oneka noeka enoka neoka kenoa eknoa kneoa nkeoa enkoa nekoa akeno kaeno aekno eakno keano ekano akneo kaneo ankeo nakeo knaeo nkaeo aenko eanko aneko naeko enako neako kenao eknao kneao nkeao enkao nekao
Note: these 'words' (valid or invalid) are all the permutations of the word oaken. These words are obtained by scrambling the letters in oaken.