nmetc mnetc nemtc enmtc mentc emntc nmtec mntec ntmec tnmec mtnec tmnec netmc entmc ntemc tnemc etnmc tenmc metnc emtnc mtenc tmenc etmnc temnc nmect mnect nemct enmct menct emnct nmcet mncet ncmet cnmet mcnet cmnet necmt encmt ncemt cnemt ecnmt cenmt mecnt emcnt mcent cment ecmnt cemnt nmtce mntce ntmce tnmce mtnce tmnce nmcte mncte ncmte cnmte mcnte cmnte ntcme tncme nctme cntme tcnme ctnme mtcne tmcne mctne cmtne tcmne ctmne netcm entcm ntecm tnecm etncm tencm nectm enctm ncetm cnetm ecntm centm ntcem tncem nctem cntem tcnem ctnem etcnm tecnm ectnm cetnm tcenm ctenm metcn emtcn mtecn tmecn etmcn temcn mectn emctn mcetn cmetn ecmtn cemtn mtcen tmcen mcten cmten tcmen ctmen etcmn tecmn ectmn cetmn tcemn ctemn
Note: these 'words' (valid or invalid) are all the permutations of the word nmetc. These words are obtained by scrambling the letters in nmetc.