hvaci vhaci havci ahvci vahci avhci hvcai vhcai hcvai chvai vchai cvhai hacvi ahcvi hcavi chavi achvi cahvi vachi avchi vcahi cvahi acvhi cavhi hvaic vhaic havic ahvic vahic avhic hviac vhiac hivac ihvac vihac ivhac haivc ahivc hiavc ihavc aihvc iahvc vaihc avihc viahc ivahc aivhc iavhc hvcia vhcia hcvia chvia vchia cvhia hvica vhica hivca ihvca vihca ivhca hciva chiva hicva ihcva cihva ichva vciha cviha vicha ivcha civha icvha haciv ahciv hcaiv chaiv achiv cahiv haicv ahicv hiacv ihacv aihcv iahcv hciav chiav hicav ihcav cihav ichav acihv caihv aichv iachv ciahv icahv vacih avcih vcaih cvaih acvih cavih vaich avich viach ivach aivch iavch vciah cviah vicah ivcah civah icvah acivh caivh aicvh iacvh ciavh icavh
Note: these 'words' (valid or invalid) are all the permutations of the word hvaci. These words are obtained by scrambling the letters in hvaci.