ungird nugird ugnird gunird nguird gnuird unigrd nuigrd uingrd iungrd niugrd inugrd uginrd guinrd uignrd iugnrd giunrd igunrd ngiurd gniurd nigurd ingurd ginurd ignurd ungrid nugrid ugnrid gunrid ngurid gnurid unrgid nurgid urngid rungid nrugid rnugid ugrnid gurnid urgnid rugnid grunid rgunid ngruid gnruid nrguid rnguid grnuid rgnuid unirgd nuirgd uinrgd iunrgd niurgd inurgd unrigd nurigd urnigd runigd nruigd rnuigd uirngd iurngd uringd ruingd irungd riungd nirugd inrugd nriugd rniugd irnugd rinugd ugirnd guirnd uigrnd iugrnd giurnd igurnd ugrind gurind urgind rugind gruind rguind uirgnd iurgnd urignd ruignd irugnd riugnd girund igrund griund rgiund irgund rigund ngirud gnirud nigrud ingrud ginrud ignrud ngriud gnriud nrgiud rngiud grniud rgniud nirgud inrgud nrigud rnigud irngud ringud girnud igrnud grinud rginud irgnud rignud ungidr nugidr ugnidr gunidr nguidr gnuidr unigdr nuigdr uingdr iungdr niugdr inugdr ugindr guindr uigndr iugndr giundr igundr ngiudr gniudr nigudr ingudr ginudr ignudr ungdir nugdir ugndir gundir ngudir gnudir undgir nudgir udngir dungir ndugir dnugir ugdnir gudnir udgnir dugnir gdunir dgunir ngduir gnduir ndguir dnguir gdnuir dgnuir unidgr nuidgr uindgr iundgr niudgr inudgr undigr nudigr udnigr dunigr nduigr dnuigr uidngr iudngr udingr duingr idungr diungr nidugr indugr ndiugr dniugr idnugr dinugr ugidnr guidnr uigdnr iugdnr giudnr igudnr ugdinr gudinr udginr duginr gduinr dguinr uidgnr iudgnr udignr duignr idugnr diugnr gidunr igdunr gdiunr dgiunr idgunr digunr ngidur gnidur nigdur ingdur gindur igndur ngdiur gndiur ndgiur dngiur gdniur dgniur nidgur indgur ndigur dnigur idngur dingur gidnur igdnur gdinur dginur idgnur dignur ungrdi nugrdi ugnrdi gunrdi ngurdi gnurdi unrgdi nurgdi urngdi rungdi nrugdi rnugdi ugrndi gurndi urgndi rugndi grundi rgundi ngrudi gnrudi nrgudi rngudi grnudi rgnudi ungdri nugdri ugndri gundri ngudri gnudri undgri nudgri udngri dungri ndugri dnugri ugdnri gudnri udgnri dugnri gdunri dgunri ngduri gnduri ndguri dnguri gdnuri dgnuri unrdgi nurdgi urndgi rundgi nrudgi rnudgi undrgi nudrgi udnrgi dunrgi ndurgi dnurgi urdngi rudngi udrngi durngi rdungi drungi nrdugi rndugi ndrugi dnrugi rdnugi drnugi ugrdni gurdni urgdni rugdni grudni rgudni ugdrni gudrni udgrni dugrni gdurni dgurni urdgni rudgni udrgni durgni rdugni drugni grduni rgduni gdruni dgruni rdguni drguni ngrdui gnrdui nrgdui rngdui grndui rgndui ngdrui gndrui ndgrui dngrui gdnrui dgnrui nrdgui rndgui ndrgui dnrgui rdngui drngui grdnui rgdnui gdrnui dgrnui rdgnui drgnui unirdg nuirdg uinrdg iunrdg niurdg inurdg unridg nuridg urnidg runidg nruidg rnuidg uirndg iurndg urindg ruindg irundg riundg nirudg inrudg nriudg rniudg irnudg rinudg unidrg nuidrg uindrg iundrg niudrg inudrg undirg nudirg udnirg dunirg nduirg dnuirg uidnrg iudnrg udinrg duinrg idunrg diunrg nidurg indurg ndiurg dniurg idnurg dinurg unrdig nurdig urndig rundig nrudig rnudig undrig nudrig udnrig dunrig ndurig dnurig urdnig rudnig udrnig durnig rdunig drunig nrduig rnduig ndruig dnruig rdnuig drnuig uirdng iurdng uridng ruidng irudng riudng uidrng iudrng udirng duirng idurng diurng urding ruding udring during rduing druing irdung ridung idrung dirung rdiung driung nirdug inrdug nridug rnidug irndug rindug nidrug indrug ndirug dnirug idnrug dinrug nrdiug rndiug ndriug dnriug rdniug drniug irdnug ridnug idrnug dirnug rdinug drinug ugirdn guirdn uigrdn iugrdn giurdn igurdn ugridn guridn urgidn rugidn gruidn rguidn uirgdn iurgdn urigdn ruigdn irugdn riugdn girudn igrudn griudn rgiudn irgudn rigudn ugidrn guidrn uigdrn iugdrn giudrn igudrn ugdirn gudirn udgirn dugirn gduirn dguirn uidgrn iudgrn udigrn duigrn idugrn diugrn gidurn igdurn gdiurn dgiurn idgurn digurn ugrdin gurdin urgdin rugdin grudin rgudin ugdrin gudrin udgrin dugrin gdurin dgurin urdgin rudgin udrgin durgin rdugin drugin grduin rgduin gdruin dgruin rdguin drguin uirdgn iurdgn uridgn ruidgn irudgn riudgn uidrgn iudrgn udirgn duirgn idurgn diurgn urdign rudign udrign durign rduign druign irdugn ridugn idrugn dirugn rdiugn driugn girdun igrdun gridun rgidun irgdun rigdun gidrun igdrun gdirun dgirun idgrun digrun grdiun rgdiun gdriun dgriun rdgiun drgiun irdgun ridgun idrgun dirgun rdigun drigun ngirdu gnirdu nigrdu ingrdu ginrdu ignrdu ngridu gnridu nrgidu rngidu grnidu rgnidu nirgdu inrgdu nrigdu rnigdu irngdu ringdu girndu igrndu grindu rgindu irgndu rigndu ngidru gnidru nigdru ingdru gindru igndru ngdiru gndiru ndgiru dngiru gdniru dgniru nidgru indgru ndigru dnigru idngru dingru gidnru igdnru gdinru dginru idgnru dignru ngrdiu gnrdiu nrgdiu rngdiu grndiu rgndiu ngdriu gndriu ndgriu dngriu gdnriu dgnriu nrdgiu rndgiu ndrgiu dnrgiu rdngiu drngiu grdniu rgdniu gdrniu dgrniu rdgniu drgniu nirdgu inrdgu nridgu rnidgu irndgu rindgu nidrgu indrgu ndirgu dnirgu idnrgu dinrgu nrdigu rndigu ndrigu dnrigu rdnigu drnigu irdngu ridngu idrngu dirngu rdingu dringu girdnu igrdnu gridnu rgidnu irgdnu rigdnu gidrnu igdrnu gdirnu dgirnu idgrnu digrnu grdinu rgdinu gdrinu dgrinu rdginu drginu irdgnu ridgnu idrgnu dirgnu rdignu drignu
Note: these 'words' (valid or invalid) are all the permutations of the word ungird. These words are obtained by scrambling the letters in ungird.