grains rgains garins agrins ragins argins grians rgians girans igrans rigans irgans gairns agirns giarns igarns aigrns iagrns raigns arigns riagns iragns airgns iargns granis rganis garnis agrnis ragnis argnis grnais rgnais gnrais ngrais rngais nrgais ganris agnris gnaris ngaris angris nagris rangis arngis rnagis nragis anrgis nargis grinas rginas girnas igrnas rignas irgnas grnias rgnias gnrias ngrias rngias nrgias ginras ignras gniras ngiras ingras nigras ringas irngas rnigas nrigas inrgas nirgas gainrs aginrs gianrs iganrs aignrs iagnrs ganirs agnirs gnairs ngairs angirs nagirs ginars ignars gniars ngiars ingars nigars aingrs iangrs anigrs naigrs inagrs niagrs raings arings riangs irangs airngs iarngs ranigs arnigs rnaigs nraigs anrigs narigs rinags irnags rniags nriags inrags nirags ainrgs ianrgs anirgs nairgs inargs niargs graisn rgaisn garisn agrisn ragisn argisn griasn rgiasn girasn igrasn rigasn irgasn gairsn agirsn giarsn igarsn aigrsn iagrsn raigsn arigsn riagsn iragsn airgsn iargsn grasin rgasin garsin agrsin ragsin argsin grsain rgsain gsrain sgrain rsgain srgain gasrin agsrin gsarin sgarin asgrin sagrin rasgin arsgin rsagin sragin asrgin sargin grisan rgisan girsan igrsan rigsan irgsan grsian rgsian gsrian sgrian rsgian srgian gisran igsran gsiran sgiran isgran sigran risgan irsgan rsigan srigan isrgan sirgan gaisrn agisrn giasrn igasrn aigsrn iagsrn gasirn agsirn gsairn sgairn asgirn sagirn gisarn igsarn gsiarn sgiarn isgarn sigarn aisgrn iasgrn asigrn saigrn isagrn siagrn raisgn arisgn riasgn irasgn airsgn iarsgn rasign arsign rsaign sraign asrign sarign risagn irsagn rsiagn sriagn isragn siragn aisrgn iasrgn asirgn sairgn isargn siargn gransi rgansi garnsi agrnsi ragnsi argnsi grnasi rgnasi gnrasi ngrasi rngasi nrgasi ganrsi agnrsi gnarsi ngarsi angrsi nagrsi rangsi arngsi rnagsi nragsi anrgsi nargsi grasni rgasni garsni agrsni ragsni argsni grsani rgsani gsrani sgrani rsgani srgani gasrni agsrni gsarni sgarni asgrni sagrni rasgni arsgni rsagni sragni asrgni sargni grnsai rgnsai gnrsai ngrsai rngsai nrgsai grsnai rgsnai gsrnai sgrnai rsgnai srgnai gnsrai ngsrai gsnrai sgnrai nsgrai sngrai rnsgai nrsgai rsngai srngai nsrgai snrgai gansri agnsri gnasri ngasri angsri nagsri gasnri agsnri gsanri sganri asgnri sagnri gnsari ngsari gsnari sgnari nsgari sngari ansgri nasgri asngri sangri nsagri snagri ransgi arnsgi rnasgi nrasgi anrsgi narsgi rasngi arsngi rsangi srangi asrngi sarngi rnsagi nrsagi rsnagi srnagi nsragi snragi ansrgi nasrgi asnrgi sanrgi nsargi snargi grinsa rginsa girnsa igrnsa rignsa irgnsa grnisa rgnisa gnrisa ngrisa rngisa nrgisa ginrsa ignrsa gnirsa ngirsa ingrsa nigrsa ringsa irngsa rnigsa nrigsa inrgsa nirgsa grisna rgisna girsna igrsna rigsna irgsna grsina rgsina gsrina sgrina rsgina srgina gisrna igsrna gsirna sgirna isgrna sigrna risgna irsgna rsigna srigna isrgna sirgna grnsia rgnsia gnrsia ngrsia rngsia nrgsia grsnia rgsnia gsrnia sgrnia rsgnia srgnia gnsria ngsria gsnria sgnria nsgria sngria rnsgia nrsgia rsngia srngia nsrgia snrgia ginsra ignsra gnisra ngisra ingsra nigsra gisnra igsnra gsinra sginra isgnra signra gnsira ngsira gsnira sgnira nsgira sngira insgra nisgra isngra singra nsigra snigra rinsga irnsga rnisga nrisga inrsga nirsga risnga irsnga rsinga sringa isrnga sirnga rnsiga nrsiga rsniga srniga nsriga snriga insrga nisrga isnrga sinrga nsirga snirga gainsr aginsr giansr igansr aignsr iagnsr ganisr agnisr gnaisr ngaisr angisr nagisr ginasr ignasr gniasr ngiasr ingasr nigasr aingsr iangsr anigsr naigsr inagsr niagsr gaisnr agisnr giasnr igasnr aigsnr iagsnr gasinr agsinr gsainr sgainr asginr saginr gisanr igsanr gsianr sgianr isganr siganr aisgnr iasgnr asignr saignr isagnr siagnr gansir agnsir gnasir ngasir angsir nagsir gasnir agsnir gsanir sganir asgnir sagnir gnsair ngsair gsnair sgnair nsgair sngair ansgir nasgir asngir sangir nsagir snagir ginsar ignsar gnisar ngisar ingsar nigsar gisnar igsnar gsinar sginar isgnar signar gnsiar ngsiar gsniar sgniar nsgiar sngiar insgar nisgar isngar singar nsigar snigar ainsgr iansgr anisgr naisgr inasgr niasgr aisngr iasngr asingr saingr isangr siangr ansigr nasigr asnigr sanigr nsaigr snaigr insagr nisagr isnagr sinagr nsiagr sniagr rainsg arinsg riansg iransg airnsg iarnsg ranisg arnisg rnaisg nraisg anrisg narisg rinasg irnasg rniasg nriasg inrasg nirasg ainrsg ianrsg anirsg nairsg inarsg niarsg raisng arisng riasng irasng airsng iarsng rasing arsing rsaing sraing asring saring risang irsang rsiang sriang israng sirang aisrng iasrng asirng sairng isarng siarng ransig arnsig rnasig nrasig anrsig narsig rasnig arsnig rsanig sranig asrnig sarnig rnsaig nrsaig rsnaig srnaig nsraig snraig ansrig nasrig asnrig sanrig nsarig snarig rinsag irnsag rnisag nrisag inrsag nirsag risnag irsnag rsinag srinag isrnag sirnag rnsiag nrsiag rsniag srniag nsriag snriag insrag nisrag isnrag sinrag nsirag snirag ainsrg iansrg anisrg naisrg inasrg niasrg aisnrg iasnrg asinrg sainrg isanrg sianrg ansirg nasirg asnirg sanirg nsairg snairg insarg nisarg isnarg sinarg nsiarg sniarg
Note: these 'words' (valid or invalid) are all the permutations of the word grains. These words are obtained by scrambling the letters in grains.