change hcange cahnge achnge hacnge ahcnge chnage hcnage cnhage nchage hncage nhcage canhge acnhge cnahge ncahge anchge nachge hancge ahncge hnacge nhacge anhcge nahcge chagne hcagne cahgne achgne hacgne ahcgne chgane hcgane cghane gchane hgcane ghcane caghne acghne cgahne gcahne agchne gachne hagcne ahgcne hgacne ghacne aghcne gahcne chngae hcngae cnhgae nchgae hncgae nhcgae chgnae hcgnae cghnae gchnae hgcnae ghcnae cnghae ncghae cgnhae gcnhae ngchae gnchae hngcae nhgcae hgncae ghncae nghcae gnhcae canghe acnghe cnaghe ncaghe ancghe nacghe cagnhe acgnhe cganhe gcanhe agcnhe gacnhe cngahe ncgahe cgnahe gcnahe ngcahe gncahe angche nagche agnche ganche ngache gnache hangce ahngce hnagce nhagce anhgce nahgce hagnce ahgnce hgance ghance aghnce gahnce hngace nhgace hgnace ghnace nghace gnhace anghce naghce agnhce ganhce ngahce gnahce chaneg hcaneg cahneg achneg hacneg ahcneg chnaeg hcnaeg cnhaeg nchaeg hncaeg nhcaeg canheg acnheg cnaheg ncaheg ancheg nacheg hanceg ahnceg hnaceg nhaceg anhceg nahceg chaeng hcaeng caheng acheng haceng ahceng cheang hceang cehang echang hecang ehcang caehng acehng ceahng ecahng aechng eachng haecng ahecng heacng ehacng aehcng eahcng chneag hcneag cnheag ncheag hnceag nhceag chenag hcenag cehnag echnag hecnag ehcnag cnehag ncehag cenhag ecnhag nechag enchag hnecag nhecag hencag ehncag nehcag enhcag canehg acnehg cnaehg ncaehg ancehg nacehg caenhg acenhg ceanhg ecanhg aecnhg eacnhg cneahg nceahg cenahg ecnahg necahg encahg anechg naechg aenchg eanchg neachg enachg hanecg ahnecg hnaecg nhaecg anhecg nahecg haencg ahencg heancg ehancg aehncg eahncg hneacg nheacg henacg ehnacg nehacg enhacg anehcg naehcg aenhcg eanhcg neahcg enahcg chagen hcagen cahgen achgen hacgen ahcgen chgaen hcgaen cghaen gchaen hgcaen ghcaen caghen acghen cgahen gcahen agchen gachen hagcen ahgcen hgacen ghacen aghcen gahcen chaegn hcaegn cahegn achegn hacegn ahcegn cheagn hceagn cehagn echagn hecagn ehcagn caehgn acehgn ceahgn ecahgn aechgn eachgn haecgn ahecgn heacgn ehacgn aehcgn eahcgn chgean hcgean cghean gchean hgcean ghcean chegan hcegan cehgan echgan hecgan ehcgan cgehan gcehan ceghan ecghan gechan egchan hgecan ghecan hegcan ehgcan gehcan eghcan cagehn acgehn cgaehn gcaehn agcehn gacehn caeghn aceghn ceaghn ecaghn aecghn eacghn cgeahn gceahn cegahn ecgahn gecahn egcahn agechn gaechn aegchn eagchn geachn egachn hagecn ahgecn hgaecn ghaecn aghecn gahecn haegcn ahegcn heagcn ehagcn aehgcn eahgcn hgeacn gheacn hegacn ehgacn gehacn eghacn agehcn gaehcn aeghcn eaghcn geahcn egahcn chngea hcngea cnhgea nchgea hncgea nhcgea chgnea hcgnea cghnea gchnea hgcnea ghcnea cnghea ncghea cgnhea gcnhea ngchea gnchea hngcea nhgcea hgncea ghncea nghcea gnhcea chnega hcnega cnhega nchega hncega nhcega chenga hcenga cehnga echnga hecnga ehcnga cnehga ncehga cenhga ecnhga nechga enchga hnecga nhecga hencga ehncga nehcga enhcga chgena hcgena cghena gchena hgcena ghcena chegna hcegna cehgna echgna hecgna ehcgna cgehna gcehna ceghna ecghna gechna egchna hgecna ghecna hegcna ehgcna gehcna eghcna cngeha ncgeha cgneha gcneha ngceha gnceha cnegha ncegha cengha ecngha necgha encgha cgenha gcenha cegnha ecgnha gecnha egcnha ngecha gnecha negcha engcha gencha egncha hngeca nhgeca hgneca ghneca ngheca gnheca hnegca nhegca hengca ehngca nehgca enhgca hgenca ghenca hegnca ehgnca gehnca eghnca ngehca gnehca neghca enghca genhca egnhca cangeh acngeh cnageh ncageh ancgeh nacgeh cagneh acgneh cganeh gcaneh agcneh gacneh cngaeh ncgaeh cgnaeh gcnaeh ngcaeh gncaeh angceh nagceh agnceh ganceh ngaceh gnaceh canegh acnegh cnaegh ncaegh ancegh nacegh caengh acengh ceangh ecangh aecngh eacngh cneagh nceagh cenagh ecnagh necagh encagh anecgh naecgh aencgh eancgh neacgh enacgh cagenh acgenh cgaenh gcaenh agcenh gacenh caegnh acegnh ceagnh ecagnh aecgnh eacgnh cgeanh gceanh ceganh ecganh gecanh egcanh agecnh gaecnh aegcnh eagcnh geacnh egacnh cngeah ncgeah cgneah gcneah ngceah gnceah cnegah ncegah cengah ecngah necgah encgah cgenah gcenah cegnah ecgnah gecnah egcnah ngecah gnecah negcah engcah gencah egncah angech nagech agnech ganech ngaech gnaech anegch naegch aengch eangch neagch enagch agench gaench aegnch eagnch geanch eganch ngeach gneach negach engach genach egnach hangec ahngec hnagec nhagec anhgec nahgec hagnec ahgnec hganec ghanec aghnec gahnec hngaec nhgaec hgnaec ghnaec nghaec gnhaec anghec naghec agnhec ganhec ngahec gnahec hanegc ahnegc hnaegc nhaegc anhegc nahegc haengc ahengc heangc ehangc aehngc eahngc hneagc nheagc henagc ehnagc nehagc enhagc anehgc naehgc aenhgc eanhgc neahgc enahgc hagenc ahgenc hgaenc ghaenc aghenc gahenc haegnc ahegnc heagnc ehagnc aehgnc eahgnc hgeanc gheanc heganc ehganc gehanc eghanc agehnc gaehnc aeghnc eaghnc geahnc egahnc hngeac nhgeac hgneac ghneac ngheac gnheac hnegac nhegac hengac ehngac nehgac enhgac hgenac ghenac hegnac ehgnac gehnac eghnac ngehac gnehac neghac enghac genhac egnhac angehc nagehc agnehc ganehc ngaehc gnaehc aneghc naeghc aenghc eanghc neaghc enaghc agenhc gaenhc aegnhc eagnhc geanhc eganhc ngeahc gneahc negahc engahc genahc egnahc
Note: these 'words' (valid or invalid) are all the permutations of the word change. These words are obtained by scrambling the letters in change.