kreep rkeep kerep ekrep rekep erkep kreep rkeep kerep ekrep rekep erkep keerp ekerp keerp ekerp eekrp eekrp reekp erekp reekp erekp eerkp eerkp krepe rkepe kerpe ekrpe rekpe erkpe krpee rkpee kpree pkree rpkee prkee kepre ekpre kpere pkere epkre pekre repke erpke rpeke preke eprke perke krepe rkepe kerpe ekrpe rekpe erkpe krpee rkpee kpree pkree rpkee prkee kepre ekpre kpere pkere epkre pekre repke erpke rpeke preke eprke perke keepr ekepr keepr ekepr eekpr eekpr keper ekper kpeer pkeer epker peker keper ekper kpeer pkeer epker peker eepkr eepkr epekr peekr epekr peekr reepk erepk reepk erepk eerpk eerpk repek erpek rpeek preek eprek perek repek erpek rpeek preek eprek perek eeprk eeprk eperk peerk eperk peerk
Note: these 'words' (valid or invalid) are all the permutations of the word kreep. These words are obtained by scrambling the letters in kreep.