speer pseer seper esper peser epser speer pseer seper esper peser epser seepr esepr seepr esepr eespr eespr peesr epesr peesr epesr eepsr eepsr spere psere sepre espre pesre epsre spree psree srpee rspee prsee rpsee serpe esrpe srepe rsepe erspe respe perse eprse prese rpese erpse repse spere psere sepre espre pesre epsre spree psree srpee rspee prsee rpsee serpe esrpe srepe rsepe erspe respe perse eprse prese rpese erpse repse seerp eserp seerp eserp eesrp eesrp serep esrep sreep rseep ersep resep serep esrep sreep rseep ersep resep eersp eersp eresp reesp eresp reesp peers epers peers epers eeprs eeprs peres epres prees rpees erpes repes peres epres prees rpees erpes repes eerps eerps ereps reeps ereps reeps
Note: these 'words' (valid or invalid) are all the permutations of the word speer. These words are obtained by scrambling the letters in speer.