serail esrail sreail rseail ersail resail searil esaril saeril aseril easril aesril sraeil rsaeil sareil asreil raseil arseil erasil reasil earsil aersil raesil aresil serial esrial sreial rseial ersial resial seiral esiral sieral iseral eisral iesral srieal rsieal sireal isreal riseal irseal erisal reisal eirsal iersal riesal iresal seairl esairl saeirl aseirl easirl aesirl seiarl esiarl siearl isearl eisarl iesarl saierl asierl siaerl isaerl aiserl iaserl eaisrl aeisrl eiasrl ieasrl aiesrl iaesrl sraiel rsaiel sariel asriel rasiel arsiel sriael rsiael sirael israel risael irsael sairel asirel siarel isarel aisrel iasrel raisel arisel riasel irasel airsel iarsel eraisl reaisl earisl aerisl raeisl areisl eriasl reiasl eirasl ierasl rieasl ireasl eairsl aeirsl eiarsl iearsl aiersl iaersl raiesl ariesl riaesl iraesl airesl iaresl serali esrali sreali rseali ersali resali searli esarli saerli aserli easrli aesrli sraeli rsaeli sareli asreli raseli arseli erasli reasli earsli aersli raesli aresli serlai esrlai srelai rselai erslai reslai selrai eslrai slerai lserai elsrai lesrai srleai rsleai slreai lsreai rlseai lrseai erlsai relsai elrsai lersai rlesai lresai sealri esalri saelri aselri easlri aeslri selari eslari sleari lseari elsari lesari saleri asleri slaeri lsaeri alseri laseri ealsri aelsri elasri leasri alesri laesri sralei rsalei sarlei asrlei raslei arslei srlaei rslaei slraei lsraei rlsaei lrsaei salrei aslrei slarei lsarei alsrei lasrei ralsei arlsei rlasei lrasei alrsei larsei eralsi realsi earlsi aerlsi raelsi arelsi erlasi relasi elrasi lerasi rleasi lreasi ealrsi aelrsi elarsi learsi alersi laersi ralesi arlesi rlaesi lraesi alresi laresi serila esrila sreila rseila ersila resila seirla esirla sierla iserla eisrla iesrla sriela rsiela sirela isrela risela irsela erisla reisla eirsla iersla riesla iresla serlia esrlia srelia rselia erslia reslia selria eslria sleria lseria elsria lesria srleia rsleia slreia lsreia rlseia lrseia erlsia relsia elrsia lersia rlesia lresia seilra esilra sielra iselra eislra ieslra selira eslira sleira lseira elsira lesira silera islera sliera lsiera ilsera lisera eilsra ielsra elisra leisra ilesra liesra srilea rsilea sirlea isrlea rislea irslea srliea rsliea slriea lsriea rlsiea lrsiea silrea islrea slirea lsirea ilsrea lisrea rilsea irlsea rlisea lrisea ilrsea lirsea erilsa reilsa eirlsa ierlsa rielsa irelsa erlisa relisa elrisa lerisa rleisa lreisa eilrsa ielrsa elirsa leirsa ilersa liersa rilesa irlesa rliesa lriesa ilresa liresa seailr esailr saeilr aseilr easilr aesilr seialr esialr siealr isealr eisalr iesalr saielr asielr siaelr isaelr aiselr iaselr eaislr aeislr eiaslr ieaslr aieslr iaeslr sealir esalir saelir aselir easlir aeslir selair eslair sleair lseair elsair lesair saleir asleir slaeir lsaeir alseir laseir ealsir aelsir elasir leasir alesir laesir seilar esilar sielar iselar eislar ieslar seliar esliar sleiar lseiar elsiar lesiar silear islear sliear lsiear ilsear lisear eilsar ielsar elisar leisar ilesar liesar sailer asiler sialer isaler aisler iasler salier aslier slaier lsaier alsier lasier silaer islaer sliaer lsiaer ilsaer lisaer ailser ialser aliser laiser ilaser liaser eailsr aeilsr eialsr iealsr aielsr iaelsr ealisr aelisr elaisr leaisr aleisr laeisr eilasr ielasr eliasr leiasr ileasr lieasr ailesr ialesr aliesr laiesr ilaesr liaesr sraile rsaile sarile asrile rasile arsile sriale rsiale sirale israle risale irsale sairle asirle siarle isarle aisrle iasrle raisle arisle riasle irasle airsle iarsle sralie rsalie sarlie asrlie raslie arslie srlaie rslaie slraie lsraie rlsaie lrsaie salrie aslrie slarie lsarie alsrie lasrie ralsie arlsie rlasie lrasie alrsie larsie srilae rsilae sirlae isrlae rislae irslae srliae rsliae slriae lsriae rlsiae lrsiae silrae islrae slirae lsirae ilsrae lisrae rilsae irlsae rlisae lrisae ilrsae lirsae sailre asilre sialre isalre aislre iaslre salire aslire slaire lsaire alsire lasire silare islare sliare lsiare ilsare lisare ailsre ialsre alisre laisre ilasre liasre railse arilse rialse iralse airlse iarlse ralise arlise rlaise lraise alrise larise rilase irlase rliase lriase ilrase lirase ailrse ialrse alirse lairse ilarse liarse erails reails earils aerils raeils areils erials reials eirals ierals rieals ireals eairls aeirls eiarls iearls aierls iaerls raiels ariels riaels iraels airels iarels eralis realis earlis aerlis raelis arelis erlais relais elrais lerais rleais lreais ealris aelris elaris learis aleris laeris raleis arleis rlaeis lraeis alreis lareis erilas reilas eirlas ierlas rielas irelas erlias relias elrias lerias rleias lreias eilras ielras eliras leiras ileras lieras rileas irleas rlieas lrieas ilreas lireas eailrs aeilrs eialrs iealrs aielrs iaelrs ealirs aelirs elairs leairs aleirs laeirs eilars ielars eliars leiars ilears liears ailers ialers aliers laiers ilaers liaers railes ariles riales irales airles iarles ralies arlies rlaies lraies alries laries rilaes irlaes rliaes lriaes ilraes liraes ailres ialres alires laires ilares liares
Note: these 'words' (valid or invalid) are all the permutations of the word serail. These words are obtained by scrambling the letters in serail.