boucle obucle buocle ubocle oubcle uobcle bocule obcule bcoule cboule ocbule cobule bucole ubcole bcuole cbuole ucbole cubole oucble uocble ocuble couble ucoble cuoble boulce obulce buolce ubolce oublce uoblce boluce obluce blouce lbouce olbuce lobuce buloce ubloce bluoce lbuoce ulboce luboce oulbce uolbce olubce loubce ulobce luobce boclue obclue bcolue cbolue ocblue coblue bolcue oblcue blocue lbocue olbcue lobcue bcloue cbloue blcoue lbcoue clboue lcboue oclbue colbue olcbue locbue clobue lcobue bucloe ubcloe bculoe cbuloe ucbloe cubloe bulcoe ublcoe blucoe lbucoe ulbcoe lubcoe bcluoe cbluoe blcuoe lbcuoe clbuoe lcbuoe uclboe culboe ulcboe lucboe cluboe lcuboe ouclbe uoclbe oculbe coulbe ucolbe cuolbe oulcbe uolcbe olucbe loucbe ulocbe luocbe oclube colube olcube locube cloube lcoube uclobe culobe ulcobe lucobe cluobe lcuobe boucel obucel buocel ubocel oubcel uobcel bocuel obcuel bcouel cbouel ocbuel cobuel bucoel ubcoel bcuoel cbuoel ucboel cuboel oucbel uocbel ocubel coubel ucobel cuobel bouecl obuecl buoecl uboecl oubecl uobecl boeucl obeucl beoucl eboucl oebucl eobucl bueocl ubeocl beuocl ebuocl uebocl eubocl ouebcl uoebcl oeubcl eoubcl ueobcl euobcl boceul obceul bcoeul cboeul ocbeul cobeul boecul obecul beocul ebocul oebcul eobcul bceoul cbeoul becoul ebcoul ceboul ecboul ocebul coebul oecbul eocbul ceobul ecobul buceol ubceol bcueol cbueol ucbeol cubeol buecol ubecol beucol ebucol uebcol eubcol bceuol cbeuol becuol ebcuol cebuol ecbuol ucebol cuebol uecbol eucbol ceubol ecubol oucebl uocebl ocuebl couebl ucoebl cuoebl ouecbl uoecbl oeucbl eoucbl ueocbl euocbl oceubl coeubl oecubl eocubl ceoubl ecoubl uceobl cueobl uecobl eucobl ceuobl ecuobl boulec obulec buolec ubolec oublec uoblec boluec obluec blouec lbouec olbuec lobuec buloec ubloec bluoec lbuoec ulboec luboec oulbec uolbec olubec loubec ulobec luobec bouelc obuelc buoelc uboelc oubelc uobelc boeulc obeulc beoulc eboulc oebulc eobulc bueolc ubeolc beuolc ebuolc uebolc eubolc oueblc uoeblc oeublc eoublc ueoblc euoblc boleuc obleuc bloeuc lboeuc olbeuc lobeuc boeluc obeluc beoluc eboluc oebluc eobluc bleouc lbeouc belouc eblouc lebouc elbouc olebuc loebuc oelbuc eolbuc leobuc elobuc buleoc ubleoc blueoc lbueoc ulbeoc lubeoc bueloc ubeloc beuloc ebuloc uebloc eubloc bleuoc lbeuoc beluoc ebluoc lebuoc elbuoc uleboc lueboc uelboc eulboc leuboc eluboc oulebc uolebc oluebc louebc uloebc luoebc ouelbc uoelbc oeulbc eoulbc ueolbc euolbc oleubc loeubc oelubc eolubc leoubc eloubc uleobc lueobc uelobc eulobc leuobc eluobc bocleu obcleu bcoleu cboleu ocbleu cobleu bolceu oblceu bloceu lboceu olbceu lobceu bcloeu cbloeu blcoeu lbcoeu clboeu lcboeu oclbeu colbeu olcbeu locbeu clobeu lcobeu bocelu obcelu bcoelu cboelu ocbelu cobelu boeclu obeclu beoclu eboclu oebclu eobclu bceolu cbeolu becolu ebcolu cebolu ecbolu oceblu coeblu oecblu eocblu ceoblu ecoblu bolecu oblecu bloecu lboecu olbecu lobecu boelcu obelcu beolcu ebolcu oeblcu eoblcu bleocu lbeocu belocu eblocu lebocu elbocu olebcu loebcu oelbcu eolbcu leobcu elobcu bcleou cbleou blceou lbceou clbeou lcbeou bcelou cbelou beclou ebclou ceblou ecblou blecou lbecou belcou eblcou lebcou elbcou clebou lcebou celbou eclbou lecbou elcbou oclebu colebu olcebu locebu cloebu lcoebu ocelbu coelbu oeclbu eoclbu ceolbu ecolbu olecbu loecbu oelcbu eolcbu leocbu elocbu cleobu lceobu celobu eclobu lecobu elcobu bucleo ubcleo bculeo cbuleo ucbleo cubleo bulceo ublceo bluceo lbuceo ulbceo lubceo bclueo cblueo blcueo lbcueo clbueo lcbueo uclbeo culbeo ulcbeo lucbeo clubeo lcubeo bucelo ubcelo bcuelo cbuelo ucbelo cubelo bueclo ubeclo beuclo ebuclo uebclo eubclo bceulo cbeulo beculo ebculo cebulo ecbulo uceblo cueblo uecblo eucblo ceublo ecublo buleco ubleco blueco lbueco ulbeco lubeco buelco ubelco beulco ebulco ueblco eublco bleuco lbeuco beluco ebluco lebuco elbuco ulebco luebco uelbco eulbco leubco elubco bcleuo cbleuo blceuo lbceuo clbeuo lcbeuo bceluo cbeluo becluo ebcluo cebluo ecbluo blecuo lbecuo belcuo eblcuo lebcuo elbcuo clebuo lcebuo celbuo eclbuo lecbuo elcbuo uclebo culebo ulcebo lucebo cluebo lcuebo ucelbo cuelbo ueclbo euclbo ceulbo eculbo ulecbo luecbo uelcbo eulcbo leucbo elucbo cleubo lceubo celubo eclubo lecubo elcubo oucleb uocleb oculeb couleb ucoleb cuoleb oulceb uolceb oluceb louceb uloceb luoceb oclueb colueb olcueb locueb cloueb lcoueb ucloeb culoeb ulcoeb lucoeb cluoeb lcuoeb oucelb uocelb ocuelb couelb ucoelb cuoelb oueclb uoeclb oeuclb eouclb ueoclb euoclb oceulb coeulb oeculb eoculb ceoulb ecoulb uceolb cueolb uecolb eucolb ceuolb ecuolb oulecb uolecb oluecb louecb uloecb luoecb ouelcb uoelcb oeulcb eoulcb ueolcb euolcb oleucb loeucb oelucb eolucb leoucb eloucb uleocb lueocb uelocb eulocb leuocb eluocb ocleub coleub olceub loceub cloeub lcoeub ocelub coelub oeclub eoclub ceolub ecolub olecub loecub oelcub eolcub leocub elocub cleoub lceoub celoub ecloub lecoub elcoub ucleob culeob ulceob luceob clueob lcueob ucelob cuelob ueclob euclob ceulob eculob ulecob luecob uelcob eulcob leucob elucob cleuob lceuob celuob ecluob lecuob elcuob
Note: these 'words' (valid or invalid) are all the permutations of the word boucle. These words are obtained by scrambling the letters in boucle.