pinged ipnged pniged npiged inpged nipged pigned ipgned pgined gpined igpned gipned pngied npgied pgnied gpnied ngpied gnpied ingped nigped ignped ginped ngiped gniped pinegd ipnegd pniegd npiegd inpegd nipegd piengd ipengd peingd epingd iepngd eipngd pneigd npeigd penigd epnigd nepigd enpigd inepgd niepgd ienpgd einpgd neipgd enipgd pigend ipgend pgiend gpiend igpend gipend piegnd ipegnd peignd epignd iepgnd eipgnd pgeind gpeind pegind epgind gepind egpind igepnd giepnd iegpnd eigpnd geipnd egipnd pngeid npgeid pgneid gpneid ngpeid gnpeid pnegid npegid pengid epngid nepgid enpgid pgenid gpenid pegnid epgnid gepnid egpnid ngepid gnepid negpid engpid genpid egnpid ingepd nigepd ignepd ginepd ngiepd gniepd inegpd niegpd iengpd eingpd neigpd enigpd igenpd gienpd iegnpd eignpd geinpd eginpd ngeipd gneipd negipd engipd genipd egnipd pingde ipngde pnigde npigde inpgde nipgde pignde ipgnde pginde gpinde igpnde gipnde pngide npgide pgnide gpnide ngpide gnpide ingpde nigpde ignpde ginpde ngipde gnipde pindge ipndge pnidge npidge inpdge nipdge pidnge ipdnge pdinge dpinge idpnge dipnge pndige npdige pdnige dpnige ndpige dnpige indpge nidpge idnpge dinpge ndipge dnipge pigdne ipgdne pgidne gpidne igpdne gipdne pidgne ipdgne pdigne dpigne idpgne dipgne pgdine gpdine pdgine dpgine gdpine dgpine igdpne gidpne idgpne digpne gdipne dgipne pngdie npgdie pgndie gpndie ngpdie gnpdie pndgie npdgie pdngie dpngie ndpgie dnpgie pgdnie gpdnie pdgnie dpgnie gdpnie dgpnie ngdpie gndpie ndgpie dngpie gdnpie dgnpie ingdpe nigdpe igndpe gindpe ngidpe gnidpe indgpe nidgpe idngpe dingpe ndigpe dnigpe igdnpe gidnpe idgnpe dignpe gdinpe dginpe ngdipe gndipe ndgipe dngipe gdnipe dgnipe pinedg ipnedg pniedg npiedg inpedg nipedg piendg ipendg peindg epindg iepndg eipndg pneidg npeidg penidg epnidg nepidg enpidg inepdg niepdg ienpdg einpdg neipdg enipdg pindeg ipndeg pnideg npideg inpdeg nipdeg pidneg ipdneg pdineg dpineg idpneg dipneg pndieg npdieg pdnieg dpnieg ndpieg dnpieg indpeg nidpeg idnpeg dinpeg ndipeg dnipeg piedng ipedng peidng epidng iepdng eipdng pideng ipdeng pdieng dpieng idpeng dipeng peding epding pdeing dpeing edping deping iedpng eidpng idepng diepng edipng deipng pnedig npedig pendig epndig nepdig enpdig pndeig npdeig pdneig dpneig ndpeig dnpeig pednig epdnig pdenig dpenig edpnig depnig nedpig endpig ndepig dnepig ednpig denpig inedpg niedpg iendpg eindpg neidpg enidpg indepg nidepg idnepg dinepg ndiepg dniepg iednpg eidnpg idenpg dienpg edinpg deinpg nedipg endipg ndeipg dneipg ednipg denipg pigedn ipgedn pgiedn gpiedn igpedn gipedn piegdn ipegdn peigdn epigdn iepgdn eipgdn pgeidn gpeidn pegidn epgidn gepidn egpidn igepdn giepdn iegpdn eigpdn geipdn egipdn pigden ipgden pgiden gpiden igpden gipden pidgen ipdgen pdigen dpigen idpgen dipgen pgdien gpdien pdgien dpgien gdpien dgpien igdpen gidpen idgpen digpen gdipen dgipen piedgn ipedgn peidgn epidgn iepdgn eipdgn pidegn ipdegn pdiegn dpiegn idpegn dipegn pedign epdign pdeign dpeign edpign depign iedpgn eidpgn idepgn diepgn edipgn deipgn pgedin gpedin pegdin epgdin gepdin egpdin pgdein gpdein pdgein dpgein gdpein dgpein pedgin epdgin pdegin dpegin edpgin depgin gedpin egdpin gdepin dgepin edgpin degpin igedpn giedpn iegdpn eigdpn geidpn egidpn igdepn gidepn idgepn digepn gdiepn dgiepn iedgpn eidgpn idegpn diegpn edigpn deigpn gedipn egdipn gdeipn dgeipn edgipn degipn pngedi npgedi pgnedi gpnedi ngpedi gnpedi pnegdi npegdi pengdi epngdi nepgdi enpgdi pgendi gpendi pegndi epgndi gepndi egpndi ngepdi gnepdi negpdi engpdi genpdi egnpdi pngdei npgdei pgndei gpndei ngpdei gnpdei pndgei npdgei pdngei dpngei ndpgei dnpgei pgdnei gpdnei pdgnei dpgnei gdpnei dgpnei ngdpei gndpei ndgpei dngpei gdnpei dgnpei pnedgi npedgi pendgi epndgi nepdgi enpdgi pndegi npdegi pdnegi dpnegi ndpegi dnpegi pedngi epdngi pdengi dpengi edpngi depngi nedpgi endpgi ndepgi dnepgi ednpgi denpgi pgedni gpedni pegdni epgdni gepdni egpdni pgdeni gpdeni pdgeni dpgeni gdpeni dgpeni pedgni epdgni pdegni dpegni edpgni depgni gedpni egdpni gdepni dgepni edgpni degpni ngedpi gnedpi negdpi engdpi gendpi egndpi ngdepi gndepi ndgepi dngepi gdnepi dgnepi nedgpi endgpi ndegpi dnegpi edngpi dengpi gednpi egdnpi gdenpi dgenpi edgnpi degnpi ingedp nigedp ignedp ginedp ngiedp gniedp inegdp niegdp iengdp eingdp neigdp enigdp igendp giendp iegndp eigndp geindp egindp ngeidp gneidp negidp engidp genidp egnidp ingdep nigdep igndep gindep ngidep gnidep indgep nidgep idngep dingep ndigep dnigep igdnep gidnep idgnep dignep gdinep dginep ngdiep gndiep ndgiep dngiep gdniep dgniep inedgp niedgp iendgp eindgp neidgp enidgp indegp nidegp idnegp dinegp ndiegp dniegp iedngp eidngp idengp diengp edingp deingp nedigp endigp ndeigp dneigp ednigp denigp igednp giednp iegdnp eigdnp geidnp egidnp igdenp gidenp idgenp digenp gdienp dgienp iedgnp eidgnp idegnp diegnp edignp deignp gedinp egdinp gdeinp dgeinp edginp deginp ngedip gnedip negdip engdip gendip egndip ngdeip gndeip ndgeip dngeip gdneip dgneip nedgip endgip ndegip dnegip edngip dengip gednip egdnip gdenip dgenip edgnip degnip
Note: these 'words' (valid or invalid) are all the permutations of the word pinged. These words are obtained by scrambling the letters in pinged.