drains rdains darins adrins radins ardins drians rdians dirans idrans ridans irdans dairns adirns diarns idarns aidrns iadrns raidns aridns riadns iradns airdns iardns dranis rdanis darnis adrnis radnis ardnis drnais rdnais dnrais ndrais rndais nrdais danris adnris dnaris ndaris andris nadris randis arndis rnadis nradis anrdis nardis drinas rdinas dirnas idrnas ridnas irdnas drnias rdnias dnrias ndrias rndias nrdias dinras idnras dniras ndiras indras nidras rindas irndas rnidas nridas inrdas nirdas dainrs adinrs dianrs idanrs aidnrs iadnrs danirs adnirs dnairs ndairs andirs nadirs dinars idnars dniars ndiars indars nidars aindrs iandrs anidrs naidrs inadrs niadrs rainds arinds riands irands airnds iarnds ranids arnids rnaids nraids anrids narids rinads irnads rniads nriads inrads nirads ainrds ianrds anirds nairds inards niards draisn rdaisn darisn adrisn radisn ardisn driasn rdiasn dirasn idrasn ridasn irdasn dairsn adirsn diarsn idarsn aidrsn iadrsn raidsn aridsn riadsn iradsn airdsn iardsn drasin rdasin darsin adrsin radsin ardsin drsain rdsain dsrain sdrain rsdain srdain dasrin adsrin dsarin sdarin asdrin sadrin rasdin arsdin rsadin sradin asrdin sardin drisan rdisan dirsan idrsan ridsan irdsan drsian rdsian dsrian sdrian rsdian srdian disran idsran dsiran sdiran isdran sidran risdan irsdan rsidan sridan isrdan sirdan daisrn adisrn diasrn idasrn aidsrn iadsrn dasirn adsirn dsairn sdairn asdirn sadirn disarn idsarn dsiarn sdiarn isdarn sidarn aisdrn iasdrn asidrn saidrn isadrn siadrn raisdn arisdn riasdn irasdn airsdn iarsdn rasidn arsidn rsaidn sraidn asridn saridn risadn irsadn rsiadn sriadn isradn siradn aisrdn iasrdn asirdn sairdn isardn siardn dransi rdansi darnsi adrnsi radnsi ardnsi drnasi rdnasi dnrasi ndrasi rndasi nrdasi danrsi adnrsi dnarsi ndarsi andrsi nadrsi randsi arndsi rnadsi nradsi anrdsi nardsi drasni rdasni darsni adrsni radsni ardsni drsani rdsani dsrani sdrani rsdani srdani dasrni adsrni dsarni sdarni asdrni sadrni rasdni arsdni rsadni sradni asrdni sardni drnsai rdnsai dnrsai ndrsai rndsai nrdsai drsnai rdsnai dsrnai sdrnai rsdnai srdnai dnsrai ndsrai dsnrai sdnrai nsdrai sndrai rnsdai nrsdai rsndai srndai nsrdai snrdai dansri adnsri dnasri ndasri andsri nadsri dasnri adsnri dsanri sdanri asdnri sadnri dnsari ndsari dsnari sdnari nsdari sndari ansdri nasdri asndri sandri nsadri snadri ransdi arnsdi rnasdi nrasdi anrsdi narsdi rasndi arsndi rsandi srandi asrndi sarndi rnsadi nrsadi rsnadi srnadi nsradi snradi ansrdi nasrdi asnrdi sanrdi nsardi snardi drinsa rdinsa dirnsa idrnsa ridnsa irdnsa drnisa rdnisa dnrisa ndrisa rndisa nrdisa dinrsa idnrsa dnirsa ndirsa indrsa nidrsa rindsa irndsa rnidsa nridsa inrdsa nirdsa drisna rdisna dirsna idrsna ridsna irdsna drsina rdsina dsrina sdrina rsdina srdina disrna idsrna dsirna sdirna isdrna sidrna risdna irsdna rsidna sridna isrdna sirdna drnsia rdnsia dnrsia ndrsia rndsia nrdsia drsnia rdsnia dsrnia sdrnia rsdnia srdnia dnsria ndsria dsnria sdnria nsdria sndria rnsdia nrsdia rsndia srndia nsrdia snrdia dinsra idnsra dnisra ndisra indsra nidsra disnra idsnra dsinra sdinra isdnra sidnra dnsira ndsira dsnira sdnira nsdira sndira insdra nisdra isndra sindra nsidra snidra rinsda irnsda rnisda nrisda inrsda nirsda risnda irsnda rsinda srinda isrnda sirnda rnsida nrsida rsnida srnida nsrida snrida insrda nisrda isnrda sinrda nsirda snirda dainsr adinsr diansr idansr aidnsr iadnsr danisr adnisr dnaisr ndaisr andisr nadisr dinasr idnasr dniasr ndiasr indasr nidasr aindsr iandsr anidsr naidsr inadsr niadsr daisnr adisnr diasnr idasnr aidsnr iadsnr dasinr adsinr dsainr sdainr asdinr sadinr disanr idsanr dsianr sdianr isdanr sidanr aisdnr iasdnr asidnr saidnr isadnr siadnr dansir adnsir dnasir ndasir andsir nadsir dasnir adsnir dsanir sdanir asdnir sadnir dnsair ndsair dsnair sdnair nsdair sndair ansdir nasdir asndir sandir nsadir snadir dinsar idnsar dnisar ndisar indsar nidsar disnar idsnar dsinar sdinar isdnar sidnar dnsiar ndsiar dsniar sdniar nsdiar sndiar insdar nisdar isndar sindar nsidar snidar ainsdr iansdr anisdr naisdr inasdr niasdr aisndr iasndr asindr saindr isandr siandr ansidr nasidr asnidr sanidr nsaidr snaidr insadr nisadr isnadr sinadr nsiadr sniadr rainsd arinsd riansd iransd airnsd iarnsd ranisd arnisd rnaisd nraisd anrisd narisd rinasd irnasd rniasd nriasd inrasd nirasd ainrsd ianrsd anirsd nairsd inarsd niarsd raisnd arisnd riasnd irasnd airsnd iarsnd rasind arsind rsaind sraind asrind sarind risand irsand rsiand sriand isrand sirand aisrnd iasrnd asirnd sairnd isarnd siarnd ransid arnsid rnasid nrasid anrsid narsid rasnid arsnid rsanid sranid asrnid sarnid rnsaid nrsaid rsnaid srnaid nsraid snraid ansrid nasrid asnrid sanrid nsarid snarid rinsad irnsad rnisad nrisad inrsad nirsad risnad irsnad rsinad srinad isrnad sirnad rnsiad nrsiad rsniad srniad nsriad snriad insrad nisrad isnrad sinrad nsirad snirad ainsrd iansrd anisrd naisrd inasrd niasrd aisnrd iasnrd asinrd sainrd isanrd sianrd ansird nasird asnird sanird nsaird snaird insard nisard isnard sinard nsiard sniard
Note: these 'words' (valid or invalid) are all the permutations of the word drains. These words are obtained by scrambling the letters in drains.