runkle urnkle rnukle nrukle unrkle nurkle ruknle urknle rkunle krunle ukrnle kurnle rnkule nrkule rknule krnule nkrule knrule unkrle nukrle uknrle kunrle nkurle knurle runlke urnlke rnulke nrulke unrlke nurlke rulnke urlnke rlunke lrunke ulrnke lurnke rnluke nrluke rlnuke lrnuke nlruke lnruke unlrke nulrke ulnrke lunrke nlurke lnurke ruklne urklne rkulne krulne ukrlne kurlne rulkne urlkne rlukne lrukne ulrkne lurkne rklune krlune rlkune lrkune klrune lkrune uklrne kulrne ulkrne lukrne klurne lkurne rnklue nrklue rknlue krnlue nkrlue knrlue rnlkue nrlkue rlnkue lrnkue nlrkue lnrkue rklnue krlnue rlknue lrknue klrnue lkrnue nklrue knlrue nlkrue lnkrue klnrue lknrue unklre nuklre uknlre kunlre nkulre knulre unlkre nulkre ulnkre lunkre nlukre lnukre uklnre kulnre ulknre luknre klunre lkunre nklure knlure nlkure lnkure klnure lknure runkel urnkel rnukel nrukel unrkel nurkel ruknel urknel rkunel krunel ukrnel kurnel rnkuel nrkuel rknuel krnuel nkruel knruel unkrel nukrel uknrel kunrel nkurel knurel runekl urnekl rnuekl nruekl unrekl nurekl ruenkl urenkl reunkl erunkl uernkl eurnkl rneukl nreukl renukl ernukl nerukl enrukl unerkl nuerkl uenrkl eunrkl neurkl enurkl rukenl urkenl rkuenl kruenl ukrenl kurenl rueknl ureknl reuknl eruknl uerknl eurknl rkeunl kreunl rekunl erkunl kerunl ekrunl ukernl kuernl uekrnl eukrnl keurnl ekurnl rnkeul nrkeul rkneul krneul nkreul knreul rnekul nrekul renkul ernkul nerkul enrkul rkenul krenul reknul erknul kernul ekrnul nkerul knerul nekrul enkrul kenrul eknrul unkerl nukerl uknerl kunerl nkuerl knuerl unekrl nuekrl uenkrl eunkrl neukrl enukrl ukenrl kuenrl ueknrl euknrl keunrl ekunrl nkeurl kneurl nekurl enkurl kenurl eknurl runlek urnlek rnulek nrulek unrlek nurlek rulnek urlnek rlunek lrunek ulrnek lurnek rnluek nrluek rlnuek lrnuek nlruek lnruek unlrek nulrek ulnrek lunrek nlurek lnurek runelk urnelk rnuelk nruelk unrelk nurelk ruenlk urenlk reunlk erunlk uernlk eurnlk rneulk nreulk renulk ernulk nerulk enrulk unerlk nuerlk uenrlk eunrlk neurlk enurlk rulenk urlenk rluenk lruenk ulrenk lurenk ruelnk urelnk reulnk erulnk uerlnk eurlnk rleunk lreunk relunk erlunk lerunk elrunk ulernk luernk uelrnk eulrnk leurnk elurnk rnleuk nrleuk rlneuk lrneuk nlreuk lnreuk rneluk nreluk renluk ernluk nerluk enrluk rlenuk lrenuk relnuk erlnuk lernuk elrnuk nleruk lneruk nelruk enlruk lenruk elnruk unlerk nulerk ulnerk lunerk nluerk lnuerk unelrk nuelrk uenlrk eunlrk neulrk enulrk ulenrk luenrk uelnrk eulnrk leunrk elunrk nleurk lneurk nelurk enlurk lenurk elnurk ruklen urklen rkulen krulen ukrlen kurlen rulken urlken rluken lruken ulrken lurken rkluen krluen rlkuen lrkuen klruen lkruen uklren kulren ulkren lukren kluren lkuren rukeln urkeln rkueln krueln ukreln kureln ruekln urekln reukln erukln uerkln eurkln rkeuln kreuln rekuln erkuln keruln ekruln ukerln kuerln uekrln eukrln keurln ekurln rulekn urlekn rluekn lruekn ulrekn lurekn ruelkn urelkn reulkn erulkn uerlkn eurlkn rleukn lreukn relukn erlukn lerukn elrukn ulerkn luerkn uelrkn eulrkn leurkn elurkn rkleun krleun rlkeun lrkeun klreun lkreun rkelun krelun reklun erklun kerlun ekrlun rlekun lrekun relkun erlkun lerkun elrkun klerun lkerun kelrun eklrun lekrun elkrun uklern kulern ulkern lukern kluern lkuern ukelrn kuelrn ueklrn euklrn keulrn ekulrn ulekrn luekrn uelkrn eulkrn leukrn elukrn kleurn lkeurn kelurn eklurn lekurn elkurn rnkleu nrkleu rknleu krnleu nkrleu knrleu rnlkeu nrlkeu rlnkeu lrnkeu nlrkeu lnrkeu rklneu krlneu rlkneu lrkneu klrneu lkrneu nklreu knlreu nlkreu lnkreu klnreu lknreu rnkelu nrkelu rknelu krnelu nkrelu knrelu rneklu nreklu renklu ernklu nerklu enrklu rkenlu krenlu reknlu erknlu kernlu ekrnlu nkerlu knerlu nekrlu enkrlu kenrlu eknrlu rnleku nrleku rlneku lrneku nlreku lnreku rnelku nrelku renlku ernlku nerlku enrlku rlenku lrenku relnku erlnku lernku elrnku nlerku lnerku nelrku enlrku lenrku elnrku rklenu krlenu rlkenu lrkenu klrenu lkrenu rkelnu krelnu reklnu erklnu kerlnu ekrlnu rleknu lreknu relknu erlknu lerknu elrknu klernu lkernu kelrnu eklrnu lekrnu elkrnu nkleru knleru nlkeru lnkeru klneru lkneru nkelru knelru neklru enklru kenlru eknlru nlekru lnekru nelkru enlkru lenkru elnkru klenru lkenru kelnru eklnru leknru elknru unkler nukler uknler kunler nkuler knuler unlker nulker ulnker lunker nluker lnuker uklner kulner ulkner lukner kluner lkuner nkluer knluer nlkuer lnkuer klnuer lknuer unkelr nukelr uknelr kunelr nkuelr knuelr uneklr nueklr uenklr eunklr neuklr enuklr ukenlr kuenlr ueknlr euknlr keunlr ekunlr nkeulr kneulr nekulr enkulr kenulr eknulr unlekr nulekr ulnekr lunekr nluekr lnuekr unelkr nuelkr uenlkr eunlkr neulkr enulkr ulenkr luenkr uelnkr eulnkr leunkr elunkr nleukr lneukr nelukr enlukr lenukr elnukr uklenr kulenr ulkenr lukenr kluenr lkuenr ukelnr kuelnr ueklnr euklnr keulnr ekulnr uleknr lueknr uelknr eulknr leuknr eluknr kleunr lkeunr kelunr eklunr lekunr elkunr nkleur knleur nlkeur lnkeur klneur lkneur nkelur knelur neklur enklur kenlur eknlur nlekur lnekur nelkur enlkur lenkur elnkur klenur lkenur kelnur eklnur leknur elknur
Note: these 'words' (valid or invalid) are all the permutations of the word runkle. These words are obtained by scrambling the letters in runkle.