crick rcick circk icrck ricck ircck crcik rccik ccrik ccrik rccik crcik cicrk iccrk ccirk ccirk iccrk cicrk ricck ircck rcick crick icrck circk crikc rcikc cirkc icrkc rickc irckc crkic rckic ckric kcric rkcic krcic cikrc ickrc ckirc kcirc ikcrc kicrc rikcc irkcc rkicc kricc ikrcc kircc crcki rccki ccrki ccrki rccki crcki crkci rckci ckrci kcrci rkcci krcci cckri cckri ckcri kccri ckcri kccri rckci crkci rkcci krcci ckrci kcrci cickr icckr ccikr ccikr icckr cickr cikcr ickcr ckicr kcicr ikccr kiccr cckir cckir ckcir kccir ckcir kccir ickcr cikcr ikccr kiccr ckicr kcicr rickc irckc rcikc crikc icrkc cirkc rikcc irkcc rkicc kricc ikrcc kircc rckic crkic rkcic krcic ckric kcric ickrc cikrc ikcrc kicrc ckirc kcirc
Note: these 'words' (valid or invalid) are all the permutations of the word crick. These words are obtained by scrambling the letters in crick.