pseud speud pesud epsud sepud espud psued spued pused upsed suped usped peusd epusd puesd upesd eupsd uepsd seupd esupd suepd usepd euspd uespd psedu spedu pesdu epsdu sepdu espdu psdeu spdeu pdseu dpseu sdpeu dspeu pedsu epdsu pdesu dpesu edpsu depsu sedpu esdpu sdepu dsepu edspu despu psude spude pusde upsde supde uspde psdue spdue pdsue dpsue sdpue dspue pudse updse pduse dpuse udpse dupse sudpe usdpe sdupe dsupe udspe duspe peuds epuds pueds upeds eupds uepds pedus epdus pdeus dpeus edpus depus pudes updes pdues dpues udpes dupes eudps uedps edups deups udeps dueps seudp esudp suedp usedp eusdp uesdp sedup esdup sdeup dseup edsup desup sudep usdep sduep dsuep udsep dusep eudsp uedsp edusp deusp udesp duesp
Note: these 'words' (valid or invalid) are all the permutations of the word pseud. These words are obtained by scrambling the letters in pseud.