cheder hceder cehder echder hecder ehcder chdeer hcdeer cdheer dcheer hdceer dhceer cedher ecdher cdeher dceher edcher decher hedcer ehdcer hdecer dhecer edhcer dehcer cheedr hceedr cehedr echedr hecedr ehcedr cheedr hceedr cehedr echedr hecedr ehcedr ceehdr ecehdr ceehdr ecehdr eechdr eechdr heecdr ehecdr heecdr ehecdr eehcdr eehcdr chdeer hcdeer cdheer dcheer hdceer dhceer cheder hceder cehder echder hecder ehcder cdeher dceher cedher ecdher decher edcher hdecer dhecer hedcer ehdcer dehcer edhcer cedehr ecdehr cdeehr dceehr edcehr decehr ceedhr ecedhr ceedhr ecedhr eecdhr eecdhr cdeehr dceehr cedehr ecdehr decehr edcehr edechr deechr eedchr eedchr deechr edechr hedecr ehdecr hdeecr dheecr edhecr dehecr heedcr ehedcr heedcr ehedcr eehdcr eehdcr hdeecr dheecr hedecr ehdecr dehecr edhecr edehcr deehcr eedhcr eedhcr deehcr edehcr chedre hcedre cehdre echdre hecdre ehcdre chdere hcdere cdhere dchere hdcere dhcere cedhre ecdhre cdehre dcehre edchre dechre hedcre ehdcre hdecre dhecre edhcre dehcre cherde hcerde cehrde echrde hecrde ehcrde chrede hcrede crhede rchede hrcede rhcede cerhde ecrhde crehde rcehde erchde rechde hercde ehrcde hrecde rhecde erhcde rehcde chdree hcdree cdhree dchree hdcree dhcree chrdee hcrdee crhdee rchdee hrcdee rhcdee cdrhee dcrhee crdhee rcdhee drchee rdchee hdrcee dhrcee hrdcee rhdcee drhcee rdhcee cedrhe ecdrhe cderhe dcerhe edcrhe decrhe cerdhe ecrdhe credhe rcedhe ercdhe recdhe cdrehe dcrehe crdehe rcdehe drcehe rdcehe edrche derche erdche redche dreche rdeche hedrce ehdrce hderce dherce edhrce dehrce herdce ehrdce hredce rhedce erhdce rehdce hdrece dhrece hrdece rhdece drhece rdhece edrhce derhce erdhce redhce drehce rdehce cheerd hceerd ceherd echerd hecerd ehcerd cheerd hceerd ceherd echerd hecerd ehcerd ceehrd ecehrd ceehrd ecehrd eechrd eechrd heecrd ehecrd heecrd ehecrd eehcrd eehcrd chered hcered cehred echred hecred ehcred chreed hcreed crheed rcheed hrceed rhceed cerhed ecrhed crehed rcehed erched reched herced ehrced hreced rheced erhced rehced chered hcered cehred echred hecred ehcred chreed hcreed crheed rcheed hrceed rhceed cerhed ecrhed crehed rcehed erched reched herced ehrced hreced rheced erhced rehced ceerhd ecerhd ceerhd ecerhd eecrhd eecrhd cerehd ecrehd creehd rceehd ercehd recehd cerehd ecrehd creehd rceehd ercehd recehd eerchd eerchd erechd reechd erechd reechd heercd ehercd heercd ehercd eehrcd eehrcd herecd ehrecd hreecd rheecd erhecd rehecd herecd ehrecd hreecd rheecd erhecd rehecd eerhcd eerhcd erehcd reehcd erehcd reehcd chdere hcdere cdhere dchere hdcere dhcere chedre hcedre cehdre echdre hecdre ehcdre cdehre dcehre cedhre ecdhre dechre edchre hdecre dhecre hedcre ehdcre dehcre edhcre chdree hcdree cdhree dchree hdcree dhcree chrdee hcrdee crhdee rchdee hrcdee rhcdee cdrhee dcrhee crdhee rcdhee drchee rdchee hdrcee dhrcee hrdcee rhdcee drhcee rdhcee cherde hcerde cehrde echrde hecrde ehcrde chrede hcrede crhede rchede hrcede rhcede cerhde ecrhde crehde rcehde erchde rechde hercde ehrcde hrecde rhecde erhcde rehcde cderhe dcerhe cedrhe ecdrhe decrhe edcrhe cdrehe dcrehe crdehe rcdehe drcehe rdcehe cerdhe ecrdhe credhe rcedhe ercdhe recdhe derche edrche dreche rdeche erdche redche hderce dherce hedrce ehdrce dehrce edhrce hdrece dhrece hrdece rhdece drhece rdhece herdce ehrdce hredce rhedce erhdce rehdce derhce edrhce drehce rdehce erdhce redhce cederh ecderh cdeerh dceerh edcerh decerh ceedrh ecedrh ceedrh ecedrh eecdrh eecdrh cdeerh dceerh cederh ecderh decerh edcerh edecrh deecrh eedcrh eedcrh deecrh edecrh cedreh ecdreh cdereh dcereh edcreh decreh cerdeh ecrdeh credeh rcedeh ercdeh recdeh cdreeh dcreeh crdeeh rcdeeh drceeh rdceeh edrceh derceh erdceh redceh dreceh rdeceh ceerdh ecerdh ceerdh ecerdh eecrdh eecrdh ceredh ecredh creedh rceedh ercedh recedh ceredh ecredh creedh rceedh ercedh recedh eercdh eercdh erecdh reecdh erecdh reecdh cdereh dcereh cedreh ecdreh decreh edcreh cdreeh dcreeh crdeeh rcdeeh drceeh rdceeh cerdeh ecrdeh credeh rcedeh ercdeh recdeh derceh edrceh dreceh rdeceh erdceh redceh ederch deerch eedrch eedrch deerch ederch edrech derech erdech redech dreech rdeech eerdch eerdch eredch reedch eredch reedch derech edrech dreech rdeech erdech redech hederc ehderc hdeerc dheerc edherc deherc heedrc ehedrc heedrc ehedrc eehdrc eehdrc hdeerc dheerc hederc ehderc deherc edherc edehrc deehrc eedhrc eedhrc deehrc edehrc hedrec ehdrec hderec dherec edhrec dehrec herdec ehrdec hredec rhedec erhdec rehdec hdreec dhreec hrdeec rhdeec drheec rdheec edrhec derhec erdhec redhec drehec rdehec heerdc eherdc heerdc eherdc eehrdc eehrdc heredc ehredc hreedc rheedc erhedc rehedc heredc ehredc hreedc rheedc erhedc rehedc eerhdc eerhdc erehdc reehdc erehdc reehdc hderec dherec hedrec ehdrec dehrec edhrec hdreec dhreec hrdeec rhdeec drheec rdheec herdec ehrdec hredec rhedec erhdec rehdec derhec edrhec drehec rdehec erdhec redhec ederhc deerhc eedrhc eedrhc deerhc ederhc edrehc derehc erdehc redehc dreehc rdeehc eerdhc eerdhc eredhc reedhc eredhc reedhc derehc edrehc dreehc rdeehc erdehc redehc
Note: these 'words' (valid or invalid) are all the permutations of the word cheder. These words are obtained by scrambling the letters in cheder.