spade psade sapde aspde pasde apsde spdae psdae sdpae dspae pdsae dpsae sadpe asdpe sdape dsape adspe daspe padse apdse pdase dpase adpse dapse spaed psaed saped asped pased apsed spead psead sepad espad pesad epsad saepd asepd seapd esapd aespd easpd paesd apesd peasd epasd aepsd eapsd spdea psdea sdpea dspea pdsea dpsea speda pseda sepda espda pesda epsda sdepa dsepa sedpa esdpa despa edspa pdesa dpesa pedsa epdsa depsa edpsa sadep asdep sdaep dsaep adsep dasep saedp asedp seadp esadp aesdp easdp sdeap dseap sedap esdap desap edsap adesp daesp aedsp eadsp deasp edasp pades apdes pdaes dpaes adpes dapes paeds apeds peads epads aepds eapds pdeas dpeas pedas epdas depas edpas adeps daeps aedps eadps deaps edaps
Note: these 'words' (valid or invalid) are all the permutations of the word spade. These words are obtained by scrambling the letters in spade.