shaek hsaek sahek ashek hasek ahsek sheak hseak sehak eshak hesak ehsak saehk asehk seahk esahk aeshk eashk haesk ahesk heask ehask aehsk eahsk shake hsake sahke ashke haske ahske shkae hskae skhae kshae hksae khsae sakhe askhe skahe ksahe akshe kashe hakse ahkse hkase khase akhse kahse sheka hseka sehka eshka heska ehska shkea hskea skhea kshea hksea khsea sekha eskha skeha kseha eksha kesha heksa ehksa hkesa khesa ekhsa kehsa saekh asekh seakh esakh aeskh easkh sakeh askeh skaeh ksaeh akseh kaseh sekah eskah skeah kseah eksah kesah aeksh eaksh akesh kaesh ekash keash haeks aheks heaks ehaks aehks eahks hakes ahkes hkaes khaes akhes kahes hekas ehkas hkeas kheas ekhas kehas aekhs eakhs akehs kaehs ekahs keahs
Note: these 'words' (valid or invalid) are all the permutations of the word shaek. These words are obtained by scrambling the letters in shaek.