hints ihnts hnits nhits inhts nihts hitns ihtns htins thins ithns tihns hntis nhtis htnis thnis nthis tnhis inths niths itnhs tinhs ntihs tnihs hinst ihnst hnist nhist inhst nihst hisnt ihsnt hsint shint ishnt sihnt hnsit nhsit hsnit shnit nshit snhit insht nisht isnht sinht nsiht sniht hitsn ihtsn htisn thisn ithsn tihsn histn ihstn hsitn shitn ishtn sihtn htsin thsin hstin shtin tshin sthin itshn tishn isthn sithn tsihn stihn hntsi nhtsi htnsi thnsi nthsi tnhsi hnsti nhsti hsnti shnti nshti snhti htsni thsni hstni shtni tshni sthni ntshi tnshi nsthi snthi tsnhi stnhi intsh nitsh itnsh tinsh ntish tnish insth nisth isnth sinth nsith snith itsnh tisnh istnh sitnh tsinh stinh ntsih tnsih nstih sntih tsnih stnih
Note: these 'words' (valid or invalid) are all the permutations of the word hints. These words are obtained by scrambling the letters in hints.