rundle urndle rnudle nrudle unrdle nurdle rudnle urdnle rdunle drunle udrnle durnle rndule nrdule rdnule drnule ndrule dnrule undrle nudrle udnrle dunrle ndurle dnurle runlde urnlde rnulde nrulde unrlde nurlde rulnde urlnde rlunde lrunde ulrnde lurnde rnlude nrlude rlnude lrnude nlrude lnrude unlrde nulrde ulnrde lunrde nlurde lnurde rudlne urdlne rdulne drulne udrlne durlne ruldne urldne rludne lrudne ulrdne lurdne rdlune drlune rldune lrdune dlrune ldrune udlrne dulrne uldrne ludrne dlurne ldurne rndlue nrdlue rdnlue drnlue ndrlue dnrlue rnldue nrldue rlndue lrndue nlrdue lnrdue rdlnue drlnue rldnue lrdnue dlrnue ldrnue ndlrue dnlrue nldrue lndrue dlnrue ldnrue undlre nudlre udnlre dunlre ndulre dnulre unldre nuldre ulndre lundre nludre lnudre udlnre dulnre uldnre ludnre dlunre ldunre ndlure dnlure nldure lndure dlnure ldnure rundel urndel rnudel nrudel unrdel nurdel rudnel urdnel rdunel drunel udrnel durnel rnduel nrduel rdnuel drnuel ndruel dnruel undrel nudrel udnrel dunrel ndurel dnurel runedl urnedl rnuedl nruedl unredl nuredl ruendl urendl reundl erundl uerndl eurndl rneudl nreudl renudl ernudl nerudl enrudl unerdl nuerdl uenrdl eunrdl neurdl enurdl rudenl urdenl rduenl druenl udrenl durenl ruednl urednl reudnl erudnl uerdnl eurdnl rdeunl dreunl redunl erdunl derunl edrunl udernl duernl uedrnl eudrnl deurnl edurnl rndeul nrdeul rdneul drneul ndreul dnreul rnedul nredul rendul erndul nerdul enrdul rdenul drenul rednul erdnul dernul edrnul nderul dnerul nedrul endrul denrul ednrul underl nuderl udnerl dunerl nduerl dnuerl unedrl nuedrl uendrl eundrl neudrl enudrl udenrl duenrl uednrl eudnrl deunrl edunrl ndeurl dneurl nedurl endurl denurl ednurl runled urnled rnuled nruled unrled nurled rulned urlned rluned lruned ulrned lurned rnlued nrlued rlnued lrnued nlrued lnrued unlred nulred ulnred lunred nlured lnured runeld urneld rnueld nrueld unreld nureld ruenld urenld reunld erunld uernld eurnld rneuld nreuld renuld ernuld neruld enruld unerld nuerld uenrld eunrld neurld enurld rulend urlend rluend lruend ulrend lurend ruelnd urelnd reulnd erulnd uerlnd eurlnd rleund lreund relund erlund lerund elrund ulernd luernd uelrnd eulrnd leurnd elurnd rnleud nrleud rlneud lrneud nlreud lnreud rnelud nrelud renlud ernlud nerlud enrlud rlenud lrenud relnud erlnud lernud elrnud nlerud lnerud nelrud enlrud lenrud elnrud unlerd nulerd ulnerd lunerd nluerd lnuerd unelrd nuelrd uenlrd eunlrd neulrd enulrd ulenrd luenrd uelnrd eulnrd leunrd elunrd nleurd lneurd nelurd enlurd lenurd elnurd rudlen urdlen rdulen drulen udrlen durlen rulden urlden rluden lruden ulrden lurden rdluen drluen rlduen lrduen dlruen ldruen udlren dulren uldren ludren dluren lduren rudeln urdeln rdueln drueln udreln dureln ruedln uredln reudln erudln uerdln eurdln rdeuln dreuln reduln erduln deruln edruln uderln duerln uedrln eudrln deurln edurln ruledn urledn rluedn lruedn ulredn luredn rueldn ureldn reuldn eruldn uerldn eurldn rleudn lreudn reludn erludn lerudn elrudn ulerdn luerdn uelrdn eulrdn leurdn elurdn rdleun drleun rldeun lrdeun dlreun ldreun rdelun drelun redlun erdlun derlun edrlun rledun lredun reldun erldun lerdun elrdun dlerun lderun delrun edlrun ledrun eldrun udlern dulern uldern ludern dluern lduern udelrn duelrn uedlrn eudlrn deulrn edulrn uledrn luedrn ueldrn euldrn leudrn eludrn dleurn ldeurn delurn edlurn ledurn eldurn rndleu nrdleu rdnleu drnleu ndrleu dnrleu rnldeu nrldeu rlndeu lrndeu nlrdeu lnrdeu rdlneu drlneu rldneu lrdneu dlrneu ldrneu ndlreu dnlreu nldreu lndreu dlnreu ldnreu rndelu nrdelu rdnelu drnelu ndrelu dnrelu rnedlu nredlu rendlu erndlu nerdlu enrdlu rdenlu drenlu rednlu erdnlu dernlu edrnlu nderlu dnerlu nedrlu endrlu denrlu ednrlu rnledu nrledu rlnedu lrnedu nlredu lnredu rneldu nreldu renldu ernldu nerldu enrldu rlendu lrendu relndu erlndu lerndu elrndu nlerdu lnerdu nelrdu enlrdu lenrdu elnrdu rdlenu drlenu rldenu lrdenu dlrenu ldrenu rdelnu drelnu redlnu erdlnu derlnu edrlnu rlednu lrednu reldnu erldnu lerdnu elrdnu dlernu ldernu delrnu edlrnu ledrnu eldrnu ndleru dnleru nlderu lnderu dlneru ldneru ndelru dnelru nedlru endlru denlru ednlru nledru lnedru neldru enldru lendru elndru dlenru ldenru delnru edlnru lednru eldnru undler nudler udnler dunler nduler dnuler unlder nulder ulnder lunder nluder lnuder udlner dulner uldner ludner dluner lduner ndluer dnluer nlduer lnduer dlnuer ldnuer undelr nudelr udnelr dunelr nduelr dnuelr unedlr nuedlr uendlr eundlr neudlr enudlr udenlr duenlr uednlr eudnlr deunlr edunlr ndeulr dneulr nedulr endulr denulr ednulr unledr nuledr ulnedr lunedr nluedr lnuedr uneldr nueldr uenldr eunldr neuldr enuldr ulendr luendr uelndr eulndr leundr elundr nleudr lneudr neludr enludr lenudr elnudr udlenr dulenr uldenr ludenr dluenr lduenr udelnr duelnr uedlnr eudlnr deulnr edulnr ulednr luednr ueldnr euldnr leudnr eludnr dleunr ldeunr delunr edlunr ledunr eldunr ndleur dnleur nldeur lndeur dlneur ldneur ndelur dnelur nedlur endlur denlur ednlur nledur lnedur neldur enldur lendur elndur dlenur ldenur delnur edlnur lednur eldnur
Note: these 'words' (valid or invalid) are all the permutations of the word rundle. These words are obtained by scrambling the letters in rundle.