zaern azern zearn ezarn aezrn eazrn zaren azren zraen rzaen arzen razen zeran ezran zrean rzean erzan rezan aerzn earzn arezn raezn erazn reazn zaenr azenr zeanr ezanr aeznr eaznr zaner azner znaer nzaer anzer nazer zenar eznar znear nzear enzar nezar aenzr eanzr anezr naezr enazr neazr zarne azrne zrane rzane arzne razne zanre aznre znare nzare anzre nazre zrnae rznae znrae nzrae rnzae nrzae arnze ranze anrze narze rnaze nraze zerna ezrna zrena rzena erzna rezna zenra eznra znera nzera enzra nezra zrnea rznea znrea nzrea rnzea nrzea ernza renza enrza nerza rneza nreza aernz earnz arenz raenz eranz reanz aenrz eanrz anerz naerz enarz nearz arnez ranez anrez narez rnaez nraez ernaz renaz enraz neraz rneaz nreaz
Note: these 'words' (valid or invalid) are all the permutations of the word zaern. These words are obtained by scrambling the letters in zaern.