ruddle urddle rdudle drudle udrdle durdle ruddle urddle rdudle drudle udrdle durdle rddule drdule rddule drdule ddrule ddrule uddrle dudrle uddrle dudrle ddurle ddurle rudlde urdlde rdulde drulde udrlde durlde ruldde urldde rludde lrudde ulrdde lurdde rdlude drlude rldude lrdude dlrude ldrude udlrde dulrde uldrde ludrde dlurde ldurde rudlde urdlde rdulde drulde udrlde durlde ruldde urldde rludde lrudde ulrdde lurdde rdlude drlude rldude lrdude dlrude ldrude udlrde dulrde uldrde ludrde dlurde ldurde rddlue drdlue rddlue drdlue ddrlue ddrlue rdldue drldue rlddue lrddue dlrdue ldrdue rdldue drldue rlddue lrddue dlrdue ldrdue ddlrue ddlrue dldrue lddrue dldrue lddrue uddlre dudlre uddlre dudlre ddulre ddulre udldre duldre ulddre luddre dludre ldudre udldre duldre ulddre luddre dludre ldudre ddlure ddlure dldure lddure dldure lddure ruddel urddel rdudel drudel udrdel durdel ruddel urddel rdudel drudel udrdel durdel rdduel drduel rdduel drduel ddruel ddruel uddrel dudrel uddrel dudrel ddurel ddurel rudedl urdedl rduedl druedl udredl duredl rueddl ureddl reuddl eruddl uerddl eurddl rdeudl dreudl redudl erdudl derudl edrudl uderdl duerdl uedrdl eudrdl deurdl edurdl rudedl urdedl rduedl druedl udredl duredl rueddl ureddl reuddl eruddl uerddl eurddl rdeudl dreudl redudl erdudl derudl edrudl uderdl duerdl uedrdl eudrdl deurdl edurdl rddeul drdeul rddeul drdeul ddreul ddreul rdedul dredul reddul erddul derdul edrdul rdedul dredul reddul erddul derdul edrdul dderul dderul dedrul eddrul dedrul eddrul udderl duderl udderl duderl dduerl dduerl udedrl duedrl ueddrl euddrl deudrl edudrl udedrl duedrl ueddrl euddrl deudrl edudrl ddeurl ddeurl dedurl eddurl dedurl eddurl rudled urdled rduled druled udrled durled rulded urlded rluded lruded ulrded lurded rdlued drlued rldued lrdued dlrued ldrued udlred dulred uldred ludred dlured ldured rudeld urdeld rdueld drueld udreld dureld ruedld uredld reudld erudld uerdld eurdld rdeuld dreuld reduld erduld deruld edruld uderld duerld uedrld eudrld deurld edurld ruledd urledd rluedd lruedd ulredd luredd rueldd ureldd reuldd eruldd uerldd eurldd rleudd lreudd reludd erludd lerudd elrudd ulerdd luerdd uelrdd eulrdd leurdd elurdd rdleud drleud rldeud lrdeud dlreud ldreud rdelud drelud redlud erdlud derlud edrlud rledud lredud reldud erldud lerdud elrdud dlerud lderud delrud edlrud ledrud eldrud udlerd dulerd ulderd luderd dluerd lduerd udelrd duelrd uedlrd eudlrd deulrd edulrd uledrd luedrd ueldrd euldrd leudrd eludrd dleurd ldeurd delurd edlurd ledurd eldurd rudled urdled rduled druled udrled durled rulded urlded rluded lruded ulrded lurded rdlued drlued rldued lrdued dlrued ldrued udlred dulred uldred ludred dlured ldured rudeld urdeld rdueld drueld udreld dureld ruedld uredld reudld erudld uerdld eurdld rdeuld dreuld reduld erduld deruld edruld uderld duerld uedrld eudrld deurld edurld ruledd urledd rluedd lruedd ulredd luredd rueldd ureldd reuldd eruldd uerldd eurldd rleudd lreudd reludd erludd lerudd elrudd ulerdd luerdd uelrdd eulrdd leurdd elurdd rdleud drleud rldeud lrdeud dlreud ldreud rdelud drelud redlud erdlud derlud edrlud rledud lredud reldud erldud lerdud elrdud dlerud lderud delrud edlrud ledrud eldrud udlerd dulerd ulderd luderd dluerd lduerd udelrd duelrd uedlrd eudlrd deulrd edulrd uledrd luedrd ueldrd euldrd leudrd eludrd dleurd ldeurd delurd edlurd ledurd eldurd rddleu drdleu rddleu drdleu ddrleu ddrleu rdldeu drldeu rlddeu lrddeu dlrdeu ldrdeu rdldeu drldeu rlddeu lrddeu dlrdeu ldrdeu ddlreu ddlreu dldreu lddreu dldreu lddreu rddelu drdelu rddelu drdelu ddrelu ddrelu rdedlu dredlu reddlu erddlu derdlu edrdlu rdedlu dredlu reddlu erddlu derdlu edrdlu dderlu dderlu dedrlu eddrlu dedrlu eddrlu rdledu drledu rldedu lrdedu dlredu ldredu rdeldu dreldu redldu erdldu derldu edrldu rleddu lreddu relddu erlddu lerddu elrddu dlerdu lderdu delrdu edlrdu ledrdu eldrdu rdledu drledu rldedu lrdedu dlredu ldredu rdeldu dreldu redldu erdldu derldu edrldu rleddu lreddu relddu erlddu lerddu elrddu dlerdu lderdu delrdu edlrdu ledrdu eldrdu ddleru ddleru dlderu ldderu dlderu ldderu ddelru ddelru dedlru eddlru dedlru eddlru dledru ldedru deldru edldru leddru elddru dledru ldedru deldru edldru leddru elddru uddler dudler uddler dudler dduler dduler udlder dulder uldder ludder dluder lduder udlder dulder uldder ludder dluder lduder ddluer ddluer dlduer ldduer dlduer ldduer uddelr dudelr uddelr dudelr dduelr dduelr udedlr duedlr ueddlr euddlr deudlr edudlr udedlr duedlr ueddlr euddlr deudlr edudlr ddeulr ddeulr dedulr eddulr dedulr eddulr udledr duledr uldedr ludedr dluedr lduedr udeldr dueldr uedldr eudldr deuldr eduldr uleddr lueddr uelddr eulddr leuddr eluddr dleudr ldeudr deludr edludr ledudr eldudr udledr duledr uldedr ludedr dluedr lduedr udeldr dueldr uedldr eudldr deuldr eduldr uleddr lueddr uelddr eulddr leuddr eluddr dleudr ldeudr deludr edludr ledudr eldudr ddleur ddleur dldeur lddeur dldeur lddeur ddelur ddelur dedlur eddlur dedlur eddlur dledur ldedur deldur edldur leddur elddur dledur ldedur deldur edldur leddur elddur
Note: these 'words' (valid or invalid) are all the permutations of the word ruddle. These words are obtained by scrambling the letters in ruddle.