reigns erigns riegns iregns eirgns iergns regins ergins rgeins greins egrins gerins rigens irgens rgiens griens igrens girens eigrns iegrns egirns geirns igerns gierns reings erings riengs irengs eirngs ierngs renigs ernigs rneigs nreigs enrigs nerigs rinegs irnegs rniegs nriegs inregs niregs einrgs ienrgs enirgs neirgs inergs niergs regnis ergnis rgenis grenis egrnis gernis rengis erngis rnegis nregis enrgis nergis rgneis grneis rngeis nrgeis gnreis ngreis egnris genris engris negris gneris ngeris rignes irgnes rgines grines igrnes girnes ringes irnges rniges nriges inrges nirges rgnies grnies rngies nrgies gnries ngries ignres ginres ingres nigres gnires ngires eignrs iegnrs eginrs geinrs igenrs gienrs eingrs iengrs enigrs neigrs inegrs niegrs egnirs genirs engirs negirs gneirs ngeirs igners giners ingers nigers gniers ngiers reigsn erigsn riegsn iregsn eirgsn iergsn regisn ergisn rgeisn greisn egrisn gerisn rigesn irgesn rgiesn griesn igresn giresn eigrsn iegrsn egirsn geirsn igersn giersn reisgn erisgn riesgn iresgn eirsgn iersgn resign ersign rseign sreign esrign serign risegn irsegn rsiegn sriegn isregn siregn eisrgn iesrgn esirgn seirgn isergn siergn regsin ergsin rgesin gresin egrsin gersin resgin ersgin rsegin sregin esrgin sergin rgsein grsein rsgein srgein gsrein sgrein egsrin gesrin esgrin segrin gserin sgerin rigsen irgsen rgisen grisen igrsen girsen risgen irsgen rsigen srigen isrgen sirgen rgsien grsien rsgien srgien gsrien sgrien igsren gisren isgren sigren gsiren sgiren eigsrn iegsrn egisrn geisrn igesrn giesrn eisgrn iesgrn esigrn seigrn isegrn siegrn egsirn gesirn esgirn segirn gseirn sgeirn igsern gisern isgern sigern gsiern sgiern reinsg erinsg riensg irensg eirnsg iernsg renisg ernisg rneisg nreisg enrisg nerisg rinesg irnesg rniesg nriesg inresg niresg einrsg ienrsg enirsg neirsg inersg niersg reisng erisng riesng iresng eirsng iersng resing ersing rseing sreing esring sering riseng irseng rsieng srieng isreng sireng eisrng iesrng esirng seirng iserng sierng rensig ernsig rnesig nresig enrsig nersig resnig ersnig rsenig srenig esrnig sernig rnseig nrseig rsneig srneig nsreig snreig ensrig nesrig esnrig senrig nserig snerig rinseg irnseg rniseg nriseg inrseg nirseg risneg irsneg rsineg srineg isrneg sirneg rnsieg nrsieg rsnieg srnieg nsrieg snrieg insreg nisreg isnreg sinreg nsireg snireg einsrg iensrg enisrg neisrg inesrg niesrg eisnrg iesnrg esinrg seinrg isenrg sienrg ensirg nesirg esnirg senirg nseirg sneirg inserg niserg isnerg sinerg nsierg snierg regnsi ergnsi rgensi grensi egrnsi gernsi rengsi erngsi rnegsi nregsi enrgsi nergsi rgnesi grnesi rngesi nrgesi gnresi ngresi egnrsi genrsi engrsi negrsi gnersi ngersi regsni ergsni rgesni gresni egrsni gersni resgni ersgni rsegni sregni esrgni sergni rgseni grseni rsgeni srgeni gsreni sgreni egsrni gesrni esgrni segrni gserni sgerni rensgi ernsgi rnesgi nresgi enrsgi nersgi resngi ersngi rsengi srengi esrngi serngi rnsegi nrsegi rsnegi srnegi nsregi snregi ensrgi nesrgi esnrgi senrgi nsergi snergi rgnsei grnsei rngsei nrgsei gnrsei ngrsei rgsnei grsnei rsgnei srgnei gsrnei sgrnei rnsgei nrsgei rsngei srngei nsrgei snrgei gnsrei ngsrei gsnrei sgnrei nsgrei sngrei egnsri gensri engsri negsri gnesri ngesri egsnri gesnri esgnri segnri gsenri sgenri ensgri nesgri esngri sengri nsegri snegri gnseri ngseri gsneri sgneri nsgeri sngeri rignse irgnse rginse grinse igrnse girnse ringse irngse rnigse nrigse inrgse nirgse rgnise grnise rngise nrgise gnrise ngrise ignrse ginrse ingrse nigrse gnirse ngirse rigsne irgsne rgisne grisne igrsne girsne risgne irsgne rsigne srigne isrgne sirgne rgsine grsine rsgine srgine gsrine sgrine igsrne gisrne isgrne sigrne gsirne sgirne rinsge irnsge rnisge nrisge inrsge nirsge risnge irsnge rsinge sringe isrnge sirnge rnsige nrsige rsnige srnige nsrige snrige insrge nisrge isnrge sinrge nsirge snirge rgnsie grnsie rngsie nrgsie gnrsie ngrsie rgsnie grsnie rsgnie srgnie gsrnie sgrnie rnsgie nrsgie rsngie srngie nsrgie snrgie gnsrie ngsrie gsnrie sgnrie nsgrie sngrie ignsre ginsre ingsre nigsre gnisre ngisre igsnre gisnre isgnre signre gsinre sginre insgre nisgre isngre singre nsigre snigre gnsire ngsire gsnire sgnire nsgire sngire eignsr iegnsr eginsr geinsr igensr giensr eingsr iengsr enigsr neigsr inegsr niegsr egnisr genisr engisr negisr gneisr ngeisr ignesr ginesr ingesr nigesr gniesr ngiesr eigsnr iegsnr egisnr geisnr igesnr giesnr eisgnr iesgnr esignr seignr isegnr siegnr egsinr gesinr esginr seginr gseinr sgeinr igsenr gisenr isgenr sigenr gsienr sgienr einsgr iensgr enisgr neisgr inesgr niesgr eisngr iesngr esingr seingr isengr siengr ensigr nesigr esnigr senigr nseigr sneigr insegr nisegr isnegr sinegr nsiegr sniegr egnsir gensir engsir negsir gnesir ngesir egsnir gesnir esgnir segnir gsenir sgenir ensgir nesgir esngir sengir nsegir snegir gnseir ngseir gsneir sgneir nsgeir sngeir ignser ginser ingser nigser gniser ngiser igsner gisner isgner signer gsiner sginer insger nisger isnger singer nsiger sniger gnsier ngsier gsnier sgnier nsgier sngier
Note: these 'words' (valid or invalid) are all the permutations of the word reigns. These words are obtained by scrambling the letters in reigns.