ecrae cerae ercae recae creae rceae ecare ceare eacre aecre caere acere erace reace earce aerce raece arece craee rcaee caree acree racee arcee ecrea cerea ercea recea creea rceea ecera ceera eecra eecra ceera ecera ereca reeca eerca eerca reeca ereca creea rceea cerea ecrea recea ercea ecaer ceaer eacer aecer caeer aceer ecear ceear eecar eecar ceear ecear eaecr aeecr eeacr eeacr aeecr eaecr caeer aceer ceaer ecaer aecer eacer eraec reaec earec aerec raeec areec ereac reeac eerac eerac reeac ereac eaerc aeerc eearc eearc aeerc eaerc raeec areec reaec eraec aerec earec craee rcaee caree acree racee arcee creae rceae cerae ecrae recae ercae caere acere ceare ecare aecre eacre raece arece reace erace aerce earce
Note: these 'words' (valid or invalid) are all the permutations of the word ecrae. These words are obtained by scrambling the letters in ecrae.