defat edfat dfeat fdeat efdat fedat deaft edaft daeft adeft eadft aedft dfaet fdaet dafet adfet fadet afdet efadt feadt eafdt aefdt faedt afedt defta edfta dfeta fdeta efdta fedta detfa edtfa dtefa tdefa etdfa tedfa dftea fdtea dtfea tdfea ftdea tfdea eftda fetda etfda tefda fteda tfeda deatf edatf daetf adetf eadtf aedtf detaf edtaf dteaf tdeaf etdaf tedaf datef adtef dtaef tdaef atdef tadef eatdf aetdf etadf teadf atedf taedf dfate fdate dafte adfte fadte afdte dftae fdtae dtfae tdfae ftdae tfdae datfe adtfe dtafe tdafe atdfe tadfe fatde aftde ftade tfade atfde tafde efatd featd eaftd aeftd faetd afetd eftad fetad etfad tefad ftead tfead eatfd aetfd etafd teafd atefd taefd fated afted ftaed tfaed atfed tafed
Note: these 'words' (valid or invalid) are all the permutations of the word defat. These words are obtained by scrambling the letters in defat.