urned runed unred nured rnued nrued urend ruend uernd eurnd reund erund unerd nuerd uenrd eunrd neurd enurd rneud nreud renud ernud nerud enrud urnde runde unrde nurde rnude nrude urdne rudne udrne durne rdune drune undre nudre udnre dunre ndure dnure rndue nrdue rdnue drnue ndrue dnrue uredn ruedn uerdn eurdn reudn erudn urden ruden udren duren rduen druen uedrn eudrn udern duern edurn deurn redun erdun rdeun dreun edrun derun unedr nuedr uendr eundr neudr enudr under nuder udner duner nduer dnuer uednr eudnr udenr duenr edunr deunr nedur endur ndeur dneur ednur denur rnedu nredu rendu erndu nerdu enrdu rndeu nrdeu rdneu drneu ndreu dnreu rednu erdnu rdenu drenu edrnu dernu nedru endru nderu dneru ednru denru
Note: these 'words' (valid or invalid) are all the permutations of the word urned. These words are obtained by scrambling the letters in urned.