deads edads daeds adeds eadds aedds dedas eddas ddeas ddeas eddas dedas dades addes ddaes ddaes addes dades eadds aedds edads deads adeds daeds deasd edasd daesd adesd eadsd aedsd desad edsad dsead sdead esdad sedad dased adsed dsaed sdaed asded saded easdd aesdd esadd seadd asedd saedd dedsa eddsa ddesa ddesa eddsa dedsa desda edsda dseda sdeda esdda sedda ddsea ddsea dsdea sddea dsdea sddea edsda desda esdda sedda dseda sdeda dadse addse ddase ddase addse dadse dasde adsde dsade sdade asdde sadde ddsae ddsae dsdae sddae dsdae sddae adsde dasde asdde sadde dsade sdade eadsd aedsd edasd deasd adesd daesd easdd aesdd esadd seadd asedd saedd edsad desad esdad sedad dsead sdead adsed dased asded saded dsaed sdaed
Note: these 'words' (valid or invalid) are all the permutations of the word deads. These words are obtained by scrambling the letters in deads.