irked riked ikred kired rkied kried irekd riekd ierkd eirkd reikd erikd ikerd kierd iekrd eikrd keird ekird rkeid kreid rekid erkid kerid ekrid irkde rikde ikrde kirde rkide kride irdke ridke idrke dirke rdike drike ikdre kidre idkre dikre kdire dkire rkdie krdie rdkie drkie kdrie dkrie iredk riedk ierdk eirdk reidk eridk irdek ridek idrek direk rdiek driek iedrk eidrk iderk dierk edirk deirk redik erdik rdeik dreik edrik derik ikedr kiedr iekdr eikdr keidr ekidr ikder kider idker diker kdier dkier iedkr eidkr idekr diekr edikr deikr kedir ekdir kdeir dkeir edkir dekir rkedi kredi rekdi erkdi kerdi ekrdi rkdei krdei rdkei drkei kdrei dkrei redki erdki rdeki dreki edrki derki kedri ekdri kderi dkeri edkri dekri
Note: these 'words' (valid or invalid) are all the permutations of the word irked. These words are obtained by scrambling the letters in irked.