nisgul insgul nsigul snigul isngul singul nigsul ingsul ngisul gnisul ignsul ginsul nsgiul sngiul ngsiul gnsiul sgniul gsniul isgnul signul igsnul gisnul sginul gsinul nisugl insugl nsiugl sniugl isnugl sinugl niusgl inusgl nuisgl unisgl iunsgl uinsgl nsuigl snuigl nusigl unsigl sunigl usnigl isungl siungl iusngl uisngl suingl usingl nigusl ingusl ngiusl gniusl ignusl ginusl niugsl inugsl nuigsl unigsl iungsl uingsl nguisl gnuisl nugisl ungisl gunisl ugnisl igunsl giunsl iugnsl uignsl guinsl uginsl nsguil snguil ngsuil gnsuil sgnuil gsnuil nsugil snugil nusgil unsgil sungil usngil ngusil gnusil nugsil ungsil gunsil ugnsil sgunil gsunil sugnil usgnil gusnil ugsnil isgunl sigunl igsunl gisunl sgiunl gsiunl isugnl siugnl iusgnl uisgnl suignl usignl igusnl giusnl iugsnl uigsnl guisnl ugisnl sguinl gsuinl suginl usginl gusinl ugsinl nisglu insglu nsiglu sniglu isnglu singlu nigslu ingslu ngislu gnislu ignslu ginslu nsgilu sngilu ngsilu gnsilu sgnilu gsnilu isgnlu signlu igsnlu gisnlu sginlu gsinlu nislgu inslgu nsilgu snilgu isnlgu sinlgu nilsgu inlsgu nlisgu lnisgu ilnsgu linsgu nsligu snligu nlsigu lnsigu slnigu lsnigu islngu silngu ilsngu lisngu slingu lsingu niglsu inglsu ngilsu gnilsu ignlsu ginlsu nilgsu inlgsu nligsu lnigsu ilngsu lingsu nglisu gnlisu nlgisu lngisu glnisu lgnisu iglnsu gilnsu ilgnsu lignsu glinsu lginsu nsgliu sngliu ngsliu gnsliu sgnliu gsnliu nslgiu snlgiu nlsgiu lnsgiu slngiu lsngiu nglsiu gnlsiu nlgsiu lngsiu glnsiu lgnsiu sglniu gslniu slgniu lsgniu glsniu lgsniu isglnu siglnu igslnu gislnu sgilnu gsilnu islgnu silgnu ilsgnu lisgnu slignu lsignu iglsnu gilsnu ilgsnu ligsnu glisnu lgisnu sglinu gslinu slginu lsginu glsinu lgsinu nisulg insulg nsiulg sniulg isnulg sinulg niuslg inuslg nuislg unislg iunslg uinslg nsuilg snuilg nusilg unsilg sunilg usnilg isunlg siunlg iusnlg uisnlg suinlg usinlg nislug inslug nsilug snilug isnlug sinlug nilsug inlsug nlisug lnisug ilnsug linsug nsliug snliug nlsiug lnsiug slniug lsniug islnug silnug ilsnug lisnug slinug lsinug niulsg inulsg nuilsg unilsg iunlsg uinlsg nilusg inlusg nliusg lniusg ilnusg linusg nulisg unlisg nluisg lnuisg ulnisg lunisg iulnsg uilnsg ilunsg liunsg ulinsg luinsg nsulig snulig nuslig unslig sunlig usnlig nsluig snluig nlsuig lnsuig slnuig lsnuig nulsig unlsig nlusig lnusig ulnsig lunsig sulnig uslnig slunig lsunig ulsnig lusnig isulng siulng iuslng uislng suilng usilng islung silung ilsung lisung sliung lsiung iulsng uilsng ilusng liusng ulisng luisng suling usling sluing lsuing ulsing lusing niguls inguls ngiuls gniuls ignuls ginuls niugls inugls nuigls unigls iungls uingls nguils gnuils nugils ungils gunils ugnils igunls giunls iugnls uignls guinls uginls niglus inglus ngilus gnilus ignlus ginlus nilgus inlgus nligus lnigus ilngus lingus nglius gnlius nlgius lngius glnius lgnius iglnus gilnus ilgnus lignus glinus lginus niulgs inulgs nuilgs unilgs iunlgs uinlgs nilugs inlugs nliugs lniugs ilnugs linugs nuligs unligs nluigs lnuigs ulnigs lunigs iulngs uilngs ilungs liungs ulings luings ngulis gnulis nuglis unglis gunlis ugnlis ngluis gnluis nlguis lnguis glnuis lgnuis nulgis unlgis nlugis lnugis ulngis lungis gulnis uglnis glunis lgunis ulgnis lugnis igulns giulns iuglns uiglns guilns ugilns igluns giluns ilguns liguns gliuns lgiuns iulgns uilgns ilugns liugns uligns luigns gulins uglins gluins lguins ulgins lugins nsguli snguli ngsuli gnsuli sgnuli gsnuli nsugli snugli nusgli unsgli sungli usngli ngusli gnusli nugsli ungsli gunsli ugnsli sgunli gsunli sugnli usgnli gusnli ugsnli nsglui snglui ngslui gnslui sgnlui gsnlui nslgui snlgui nlsgui lnsgui slngui lsngui nglsui gnlsui nlgsui lngsui glnsui lgnsui sglnui gslnui slgnui lsgnui glsnui lgsnui nsulgi snulgi nuslgi unslgi sunlgi usnlgi nslugi snlugi nlsugi lnsugi slnugi lsnugi nulsgi unlsgi nlusgi lnusgi ulnsgi lunsgi sulngi uslngi slungi lsungi ulsngi lusngi ngulsi gnulsi nuglsi unglsi gunlsi ugnlsi nglusi gnlusi nlgusi lngusi glnusi lgnusi nulgsi unlgsi nlugsi lnugsi ulngsi lungsi gulnsi uglnsi glunsi lgunsi ulgnsi lugnsi sgulni gsulni suglni usglni guslni ugslni sgluni gsluni slguni lsguni glsuni lgsuni sulgni uslgni slugni lsugni ulsgni lusgni gulsni uglsni glusni lgusni ulgsni lugsni isguln siguln igsuln gisuln sgiuln gsiuln isugln siugln iusgln uisgln suigln usigln igusln giusln iugsln uigsln guisln ugisln sguiln gsuiln sugiln usgiln gusiln ugsiln isglun siglun igslun gislun sgilun gsilun islgun silgun ilsgun lisgun sligun lsigun iglsun gilsun ilgsun ligsun glisun lgisun sgliun gsliun slgiun lsgiun glsiun lgsiun isulgn siulgn iuslgn uislgn suilgn usilgn islugn silugn ilsugn lisugn sliugn lsiugn iulsgn uilsgn ilusgn liusgn ulisgn luisgn sulign uslign sluign lsuign ulsign lusign igulsn giulsn iuglsn uiglsn guilsn ugilsn iglusn gilusn ilgusn ligusn gliusn lgiusn iulgsn uilgsn ilugsn liugsn uligsn luigsn gulisn uglisn gluisn lguisn ulgisn lugisn sgulin gsulin suglin usglin guslin ugslin sgluin gsluin slguin lsguin glsuin lgsuin sulgin uslgin slugin lsugin ulsgin lusgin gulsin uglsin glusin lgusin ulgsin lugsin
Note: these 'words' (valid or invalid) are all the permutations of the word nisgul. These words are obtained by scrambling the letters in nisgul.