droils rdoils dorils odrils rodils ordils driols rdiols dirols idrols ridols irdols doirls odirls diorls idorls oidrls iodrls roidls oridls riodls irodls oirdls iordls drolis rdolis dorlis odrlis rodlis ordlis drlois rdlois dlrois ldrois rldois lrdois dolris odlris dloris ldoris oldris lodris roldis orldis rlodis lrodis olrdis lordis drilos rdilos dirlos idrlos ridlos irdlos drlios rdlios dlrios ldrios rldios lrdios dilros idlros dliros ldiros ildros lidros rildos irldos rlidos lridos ilrdos lirdos doilrs odilrs diolrs idolrs oidlrs iodlrs dolirs odlirs dloirs ldoirs oldirs lodirs dilors idlors dliors ldiors ildors lidors oildrs ioldrs olidrs loidrs ilodrs liodrs roilds orilds riolds irolds oirlds iorlds rolids orlids rloids lroids olrids lorids rilods irlods rliods lriods ilrods lirods oilrds iolrds olirds loirds ilords liords droisl rdoisl dorisl odrisl rodisl ordisl driosl rdiosl dirosl idrosl ridosl irdosl doirsl odirsl diorsl idorsl oidrsl iodrsl roidsl oridsl riodsl irodsl oirdsl iordsl drosil rdosil dorsil odrsil rodsil ordsil drsoil rdsoil dsroil sdroil rsdoil srdoil dosril odsril dsoril sdoril osdril sodril rosdil orsdil rsodil srodil osrdil sordil drisol rdisol dirsol idrsol ridsol irdsol drsiol rdsiol dsriol sdriol rsdiol srdiol disrol idsrol dsirol sdirol isdrol sidrol risdol irsdol rsidol sridol isrdol sirdol doisrl odisrl diosrl idosrl oidsrl iodsrl dosirl odsirl dsoirl sdoirl osdirl sodirl disorl idsorl dsiorl sdiorl isdorl sidorl oisdrl iosdrl osidrl soidrl isodrl siodrl roisdl orisdl riosdl irosdl oirsdl iorsdl rosidl orsidl rsoidl sroidl osridl soridl risodl irsodl rsiodl sriodl isrodl sirodl oisrdl iosrdl osirdl soirdl isordl siordl drolsi rdolsi dorlsi odrlsi rodlsi ordlsi drlosi rdlosi dlrosi ldrosi rldosi lrdosi dolrsi odlrsi dlorsi ldorsi oldrsi lodrsi roldsi orldsi rlodsi lrodsi olrdsi lordsi drosli rdosli dorsli odrsli rodsli ordsli drsoli rdsoli dsroli sdroli rsdoli srdoli dosrli odsrli dsorli sdorli osdrli sodrli rosdli orsdli rsodli srodli osrdli sordli drlsoi rdlsoi dlrsoi ldrsoi rldsoi lrdsoi drsloi rdsloi dsrloi sdrloi rsdloi srdloi dlsroi ldsroi dslroi sdlroi lsdroi sldroi rlsdoi lrsdoi rsldoi srldoi lsrdoi slrdoi dolsri odlsri dlosri ldosri oldsri lodsri doslri odslri dsolri sdolri osdlri sodlri dlsori ldsori dslori sdlori lsdori sldori olsdri losdri osldri soldri lsodri slodri rolsdi orlsdi rlosdi lrosdi olrsdi lorsdi rosldi orsldi rsoldi sroldi osrldi sorldi rlsodi lrsodi rslodi srlodi lsrodi slrodi olsrdi losrdi oslrdi solrdi lsordi slordi drilso rdilso dirlso idrlso ridlso irdlso drliso rdliso dlriso ldriso rldiso lrdiso dilrso idlrso dlirso ldirso ildrso lidrso rildso irldso rlidso lridso ilrdso lirdso drislo rdislo dirslo idrslo ridslo irdslo drsilo rdsilo dsrilo sdrilo rsdilo srdilo disrlo idsrlo dsirlo sdirlo isdrlo sidrlo risdlo irsdlo rsidlo sridlo isrdlo sirdlo drlsio rdlsio dlrsio ldrsio rldsio lrdsio drslio rdslio dsrlio sdrlio rsdlio srdlio dlsrio ldsrio dslrio sdlrio lsdrio sldrio rlsdio lrsdio rsldio srldio lsrdio slrdio dilsro idlsro dlisro ldisro ildsro lidsro dislro idslro dsilro sdilro isdlro sidlro dlsiro ldsiro dsliro sdliro lsdiro sldiro ilsdro lisdro isldro sildro lsidro slidro rilsdo irlsdo rlisdo lrisdo ilrsdo lirsdo risldo irsldo rsildo srildo isrldo sirldo rlsido lrsido rslido srlido lsrido slrido ilsrdo lisrdo islrdo silrdo lsirdo slirdo doilsr odilsr diolsr idolsr oidlsr iodlsr dolisr odlisr dloisr ldoisr oldisr lodisr dilosr idlosr dliosr ldiosr ildosr lidosr oildsr ioldsr olidsr loidsr ilodsr liodsr doislr odislr dioslr idoslr oidslr iodslr dosilr odsilr dsoilr sdoilr osdilr sodilr disolr idsolr dsiolr sdiolr isdolr sidolr oisdlr iosdlr osidlr soidlr isodlr siodlr dolsir odlsir dlosir ldosir oldsir lodsir doslir odslir dsolir sdolir osdlir sodlir dlsoir ldsoir dsloir sdloir lsdoir sldoir olsdir losdir osldir soldir lsodir slodir dilsor idlsor dlisor ldisor ildsor lidsor dislor idslor dsilor sdilor isdlor sidlor dlsior ldsior dslior sdlior lsdior sldior ilsdor lisdor isldor sildor lsidor slidor oilsdr iolsdr olisdr loisdr ilosdr liosdr oisldr iosldr osildr soildr isoldr sioldr olsidr losidr oslidr solidr lsoidr sloidr ilsodr lisodr islodr silodr lsiodr sliodr roilsd orilsd riolsd irolsd oirlsd iorlsd rolisd orlisd rloisd lroisd olrisd lorisd rilosd irlosd rliosd lriosd ilrosd lirosd oilrsd iolrsd olirsd loirsd ilorsd liorsd roisld orisld riosld irosld oirsld iorsld rosild orsild rsoild sroild osrild sorild risold irsold rsiold sriold isrold sirold oisrld iosrld osirld soirld isorld siorld rolsid orlsid rlosid lrosid olrsid lorsid roslid orslid rsolid srolid osrlid sorlid rlsoid lrsoid rsloid srloid lsroid slroid olsrid losrid oslrid solrid lsorid slorid rilsod irlsod rlisod lrisod ilrsod lirsod rislod irslod rsilod srilod isrlod sirlod rlsiod lrsiod rsliod srliod lsriod slriod ilsrod lisrod islrod silrod lsirod slirod oilsrd iolsrd olisrd loisrd ilosrd liosrd oislrd ioslrd osilrd soilrd isolrd siolrd olsird losird oslird solird lsoird sloird ilsord lisord islord silord lsiord sliord
Note: these 'words' (valid or invalid) are all the permutations of the word droils. These words are obtained by scrambling the letters in droils.