hdaor dhaor hador ahdor dahor adhor hdoar dhoar hodar ohdar dohar odhar haodr ahodr hoadr ohadr aohdr oahdr daohr adohr doahr odahr aodhr oadhr hdaro dharo hadro ahdro dahro adhro hdrao dhrao hrdao rhdao drhao rdhao hardo ahrdo hrado rhado arhdo rahdo darho adrho draho rdaho ardho radho hdora dhora hodra ohdra dohra odhra hdroa dhroa hrdoa rhdoa drhoa rdhoa horda ohrda hroda rhoda orhda rohda dorha odrha droha rdoha ordha rodha haord ahord hoard ohard aohrd oahrd harod ahrod hraod rhaod arhod rahod horad ohrad hroad rhoad orhad rohad aorhd oarhd arohd raohd orahd roahd daorh adorh doarh odarh aodrh oadrh daroh adroh draoh rdaoh ardoh radoh dorah odrah droah rdoah ordah rodah aordh oardh arodh raodh oradh roadh
Note: these 'words' (valid or invalid) are all the permutations of the word hdaor. These words are obtained by scrambling the letters in hdaor.