upgird pugird ugpird gupird pguird gpuird upigrd puigrd uipgrd iupgrd piugrd ipugrd ugiprd guiprd uigprd iugprd giuprd iguprd pgiurd gpiurd pigurd ipgurd gipurd igpurd upgrid pugrid ugprid guprid pgurid gpurid uprgid purgid urpgid rupgid prugid rpugid ugrpid gurpid urgpid rugpid grupid rgupid pgruid gpruid prguid rpguid grpuid rgpuid upirgd puirgd uiprgd iuprgd piurgd ipurgd uprigd purigd urpigd rupigd pruigd rpuigd uirpgd iurpgd uripgd ruipgd irupgd riupgd pirugd iprugd priugd rpiugd irpugd ripugd ugirpd guirpd uigrpd iugrpd giurpd igurpd ugripd guripd urgipd rugipd gruipd rguipd uirgpd iurgpd urigpd ruigpd irugpd riugpd girupd igrupd griupd rgiupd irgupd rigupd pgirud gpirud pigrud ipgrud giprud igprud pgriud gpriud prgiud rpgiud grpiud rgpiud pirgud iprgud prigud rpigud irpgud ripgud girpud igrpud gripud rgipud irgpud rigpud upgidr pugidr ugpidr gupidr pguidr gpuidr upigdr puigdr uipgdr iupgdr piugdr ipugdr ugipdr guipdr uigpdr iugpdr giupdr igupdr pgiudr gpiudr pigudr ipgudr gipudr igpudr upgdir pugdir ugpdir gupdir pgudir gpudir updgir pudgir udpgir dupgir pdugir dpugir ugdpir gudpir udgpir dugpir gdupir dgupir pgduir gpduir pdguir dpguir gdpuir dgpuir upidgr puidgr uipdgr iupdgr piudgr ipudgr updigr pudigr udpigr dupigr pduigr dpuigr uidpgr iudpgr udipgr duipgr idupgr diupgr pidugr ipdugr pdiugr dpiugr idpugr dipugr ugidpr guidpr uigdpr iugdpr giudpr igudpr ugdipr gudipr udgipr dugipr gduipr dguipr uidgpr iudgpr udigpr duigpr idugpr diugpr gidupr igdupr gdiupr dgiupr idgupr digupr pgidur gpidur pigdur ipgdur gipdur igpdur pgdiur gpdiur pdgiur dpgiur gdpiur dgpiur pidgur ipdgur pdigur dpigur idpgur dipgur gidpur igdpur gdipur dgipur idgpur digpur upgrdi pugrdi ugprdi guprdi pgurdi gpurdi uprgdi purgdi urpgdi rupgdi prugdi rpugdi ugrpdi gurpdi urgpdi rugpdi grupdi rgupdi pgrudi gprudi prgudi rpgudi grpudi rgpudi upgdri pugdri ugpdri gupdri pgudri gpudri updgri pudgri udpgri dupgri pdugri dpugri ugdpri gudpri udgpri dugpri gdupri dgupri pgduri gpduri pdguri dpguri gdpuri dgpuri uprdgi purdgi urpdgi rupdgi prudgi rpudgi updrgi pudrgi udprgi duprgi pdurgi dpurgi urdpgi rudpgi udrpgi durpgi rdupgi drupgi prdugi rpdugi pdrugi dprugi rdpugi drpugi ugrdpi gurdpi urgdpi rugdpi grudpi rgudpi ugdrpi gudrpi udgrpi dugrpi gdurpi dgurpi urdgpi rudgpi udrgpi durgpi rdugpi drugpi grdupi rgdupi gdrupi dgrupi rdgupi drgupi pgrdui gprdui prgdui rpgdui grpdui rgpdui pgdrui gpdrui pdgrui dpgrui gdprui dgprui prdgui rpdgui pdrgui dprgui rdpgui drpgui grdpui rgdpui gdrpui dgrpui rdgpui drgpui upirdg puirdg uiprdg iuprdg piurdg ipurdg upridg puridg urpidg rupidg pruidg rpuidg uirpdg iurpdg uripdg ruipdg irupdg riupdg pirudg iprudg priudg rpiudg irpudg ripudg upidrg puidrg uipdrg iupdrg piudrg ipudrg updirg pudirg udpirg dupirg pduirg dpuirg uidprg iudprg udiprg duiprg iduprg diuprg pidurg ipdurg pdiurg dpiurg idpurg dipurg uprdig purdig urpdig rupdig prudig rpudig updrig pudrig udprig duprig pdurig dpurig urdpig rudpig udrpig durpig rdupig drupig prduig rpduig pdruig dpruig rdpuig drpuig uirdpg iurdpg uridpg ruidpg irudpg riudpg uidrpg iudrpg udirpg duirpg idurpg diurpg urdipg rudipg udripg duripg rduipg druipg irdupg ridupg idrupg dirupg rdiupg driupg pirdug iprdug pridug rpidug irpdug ripdug pidrug ipdrug pdirug dpirug idprug diprug prdiug rpdiug pdriug dpriug rdpiug drpiug irdpug ridpug idrpug dirpug rdipug dripug ugirdp guirdp uigrdp iugrdp giurdp igurdp ugridp guridp urgidp rugidp gruidp rguidp uirgdp iurgdp urigdp ruigdp irugdp riugdp girudp igrudp griudp rgiudp irgudp rigudp ugidrp guidrp uigdrp iugdrp giudrp igudrp ugdirp gudirp udgirp dugirp gduirp dguirp uidgrp iudgrp udigrp duigrp idugrp diugrp gidurp igdurp gdiurp dgiurp idgurp digurp ugrdip gurdip urgdip rugdip grudip rgudip ugdrip gudrip udgrip dugrip gdurip dgurip urdgip rudgip udrgip durgip rdugip drugip grduip rgduip gdruip dgruip rdguip drguip uirdgp iurdgp uridgp ruidgp irudgp riudgp uidrgp iudrgp udirgp duirgp idurgp diurgp urdigp rudigp udrigp durigp rduigp druigp irdugp ridugp idrugp dirugp rdiugp driugp girdup igrdup gridup rgidup irgdup rigdup gidrup igdrup gdirup dgirup idgrup digrup grdiup rgdiup gdriup dgriup rdgiup drgiup irdgup ridgup idrgup dirgup rdigup drigup pgirdu gpirdu pigrdu ipgrdu giprdu igprdu pgridu gpridu prgidu rpgidu grpidu rgpidu pirgdu iprgdu prigdu rpigdu irpgdu ripgdu girpdu igrpdu gripdu rgipdu irgpdu rigpdu pgidru gpidru pigdru ipgdru gipdru igpdru pgdiru gpdiru pdgiru dpgiru gdpiru dgpiru pidgru ipdgru pdigru dpigru idpgru dipgru gidpru igdpru gdipru dgipru idgpru digpru pgrdiu gprdiu prgdiu rpgdiu grpdiu rgpdiu pgdriu gpdriu pdgriu dpgriu gdpriu dgpriu prdgiu rpdgiu pdrgiu dprgiu rdpgiu drpgiu grdpiu rgdpiu gdrpiu dgrpiu rdgpiu drgpiu pirdgu iprdgu pridgu rpidgu irpdgu ripdgu pidrgu ipdrgu pdirgu dpirgu idprgu diprgu prdigu rpdigu pdrigu dprigu rdpigu drpigu irdpgu ridpgu idrpgu dirpgu rdipgu dripgu girdpu igrdpu gridpu rgidpu irgdpu rigdpu gidrpu igdrpu gdirpu dgirpu idgrpu digrpu grdipu rgdipu gdripu dgripu rdgipu drgipu irdgpu ridgpu idrgpu dirgpu rdigpu drigpu
Note: these 'words' (valid or invalid) are all the permutations of the word upgird. These words are obtained by scrambling the letters in upgird.