billed iblled bliled lbiled ilbled libled billed iblled bliled lbiled ilbled libled bllied lblied bllied lblied llbied llbied illbed lilbed illbed lilbed llibed llibed bileld ibleld blield lbield ilbeld libeld bielld ibelld beilld ebilld ieblld eiblld bleild lbeild belild eblild lebild elbild ilebld liebld ielbld eilbld leibld elibld bileld ibleld blield lbield ilbeld libeld bielld ibelld beilld ebilld ieblld eiblld bleild lbeild belild eblild lebild elbild ilebld liebld ielbld eilbld leibld elibld blleid lbleid blleid lbleid llbeid llbeid blelid lbelid bellid ebllid leblid elblid blelid lbelid bellid ebllid leblid elblid llebid llebid lelbid ellbid lelbid ellbid illebd lilebd illebd lilebd lliebd lliebd ilelbd lielbd iellbd eillbd leilbd elilbd ilelbd lielbd iellbd eillbd leilbd elilbd lleibd lleibd lelibd ellibd lelibd ellibd billde ibllde blilde lbilde ilblde liblde billde ibllde blilde lbilde ilblde liblde bllide lblide bllide lblide llbide llbide illbde lilbde illbde lilbde llibde llibde bildle ibldle blidle lbidle ilbdle libdle bidlle ibdlle bdille dbille idblle diblle bldile lbdile bdlile dblile ldbile dlbile ildble lidble idlble dilble ldible dlible bildle ibldle blidle lbidle ilbdle libdle bidlle ibdlle bdille dbille idblle diblle bldile lbdile bdlile dblile ldbile dlbile ildble lidble idlble dilble ldible dlible blldie lbldie blldie lbldie llbdie llbdie bldlie lbdlie bdllie dbllie ldblie dlblie bldlie lbdlie bdllie dbllie ldblie dlblie lldbie lldbie ldlbie dllbie ldlbie dllbie illdbe lildbe illdbe lildbe llidbe llidbe ildlbe lidlbe idllbe dillbe ldilbe dlilbe ildlbe lidlbe idllbe dillbe ldilbe dlilbe lldibe lldibe ldlibe dllibe ldlibe dllibe biledl ibledl bliedl lbiedl ilbedl libedl bieldl ibeldl beildl ebildl iebldl eibldl bleidl lbeidl belidl eblidl lebidl elbidl ilebdl liebdl ielbdl eilbdl leibdl elibdl bildel ibldel blidel lbidel ilbdel libdel bidlel ibdlel bdilel dbilel idblel diblel bldiel lbdiel bdliel dbliel ldbiel dlbiel ildbel lidbel idlbel dilbel ldibel dlibel biedll ibedll beidll ebidll iebdll eibdll bidell ibdell bdiell dbiell idbell dibell bedill ebdill bdeill dbeill edbill debill iedbll eidbll idebll diebll edibll deibll bledil lbedil beldil ebldil lebdil elbdil bldeil lbdeil bdleil dbleil ldbeil dlbeil bedlil ebdlil bdelil dbelil edblil deblil ledbil eldbil ldebil dlebil edlbil delbil iledbl liedbl ieldbl eildbl leidbl elidbl ildebl lidebl idlebl dilebl ldiebl dliebl iedlbl eidlbl idelbl dielbl edilbl deilbl ledibl eldibl ldeibl dleibl edlibl delibl biledl ibledl bliedl lbiedl ilbedl libedl bieldl ibeldl beildl ebildl iebldl eibldl bleidl lbeidl belidl eblidl lebidl elbidl ilebdl liebdl ielbdl eilbdl leibdl elibdl bildel ibldel blidel lbidel ilbdel libdel bidlel ibdlel bdilel dbilel idblel diblel bldiel lbdiel bdliel dbliel ldbiel dlbiel ildbel lidbel idlbel dilbel ldibel dlibel biedll ibedll beidll ebidll iebdll eibdll bidell ibdell bdiell dbiell idbell dibell bedill ebdill bdeill dbeill edbill debill iedbll eidbll idebll diebll edibll deibll bledil lbedil beldil ebldil lebdil elbdil bldeil lbdeil bdleil dbleil ldbeil dlbeil bedlil ebdlil bdelil dbelil edblil deblil ledbil eldbil ldebil dlebil edlbil delbil iledbl liedbl ieldbl eildbl leidbl elidbl ildebl lidebl idlebl dilebl ldiebl dliebl iedlbl eidlbl idelbl dielbl edilbl deilbl ledibl eldibl ldeibl dleibl edlibl delibl blledi lbledi blledi lbledi llbedi llbedi bleldi lbeldi belldi eblldi lebldi elbldi bleldi lbeldi belldi eblldi lebldi elbldi llebdi llebdi lelbdi ellbdi lelbdi ellbdi blldei lbldei blldei lbldei llbdei llbdei bldlei lbdlei bdllei dbllei ldblei dlblei bldlei lbdlei bdllei dbllei ldblei dlblei lldbei lldbei ldlbei dllbei ldlbei dllbei bledli lbedli beldli ebldli lebdli elbdli bldeli lbdeli bdleli dbleli ldbeli dlbeli bedlli ebdlli bdelli dbelli edblli deblli ledbli eldbli ldebli dlebli edlbli delbli bledli lbedli beldli ebldli lebdli elbdli bldeli lbdeli bdleli dbleli ldbeli dlbeli bedlli ebdlli bdelli dbelli edblli deblli ledbli eldbli ldebli dlebli edlbli delbli lledbi lledbi leldbi elldbi leldbi elldbi lldebi lldebi ldlebi dllebi ldlebi dllebi ledlbi eldlbi ldelbi dlelbi edllbi dellbi ledlbi eldlbi ldelbi dlelbi edllbi dellbi illedb liledb illedb liledb lliedb lliedb ileldb lieldb ielldb eilldb leildb elildb ileldb lieldb ielldb eilldb leildb elildb lleidb lleidb lelidb ellidb lelidb ellidb illdeb lildeb illdeb lildeb llideb llideb ildleb lidleb idlleb dilleb ldileb dlileb ildleb lidleb idlleb dilleb ldileb dlileb lldieb lldieb ldlieb dllieb ldlieb dllieb iledlb liedlb ieldlb eildlb leidlb elidlb ildelb lidelb idlelb dilelb ldielb dlielb iedllb eidllb idellb diellb edillb deillb ledilb eldilb ldeilb dleilb edlilb delilb iledlb liedlb ieldlb eildlb leidlb elidlb ildelb lidelb idlelb dilelb ldielb dlielb iedllb eidllb idellb diellb edillb deillb ledilb eldilb ldeilb dleilb edlilb delilb lledib lledib leldib elldib leldib elldib lldeib lldeib ldleib dlleib ldleib dlleib ledlib eldlib ldelib dlelib edllib dellib ledlib eldlib ldelib dlelib edllib dellib
Note: these 'words' (valid or invalid) are all the permutations of the word billed. These words are obtained by scrambling the letters in billed.