nidify indify ndiify dniify idnify dinify niidfy inidfy niidfy inidfy iindfy iindfy ndiify dniify nidify indify dinify idnify idinfy diinfy iidnfy iidnfy diinfy idinfy nidfiy indfiy ndifiy dnifiy idnfiy dinfiy nifdiy infdiy nfidiy fnidiy ifndiy findiy ndfiiy dnfiiy nfdiiy fndiiy dfniiy fdniiy idfniy difniy ifdniy fidniy dfiniy fdiniy niifdy inifdy niifdy inifdy iinfdy iinfdy nifidy infidy nfiidy fniidy ifnidy finidy nifidy infidy nfiidy fniidy ifnidy finidy iifndy iifndy ifindy fiindy ifindy fiindy ndifiy dnifiy nidfiy indfiy dinfiy idnfiy ndfiiy dnfiiy nfdiiy fndiiy dfniiy fdniiy nifdiy infdiy nfidiy fnidiy ifndiy findiy difniy idfniy dfiniy fdiniy ifdniy fidniy idifny diifny iidfny iidfny diifny idifny idfiny difiny ifdiny fidiny dfiiny fdiiny iifdny iifdny ifidny fiidny ifidny fiidny difiny idfiny dfiiny fdiiny ifdiny fidiny nidiyf indiyf ndiiyf dniiyf idniyf diniyf niidyf inidyf niidyf inidyf iindyf iindyf ndiiyf dniiyf nidiyf indiyf diniyf idniyf idinyf diinyf iidnyf iidnyf diinyf idinyf nidyif indyif ndiyif dniyif idnyif dinyif niydif inydif nyidif ynidif iyndif yindif ndyiif dnyiif nydiif yndiif dyniif ydniif idynif diynif iydnif yidnif dyinif ydinif niiydf iniydf niiydf iniydf iinydf iinydf niyidf inyidf nyiidf yniidf iynidf yinidf niyidf inyidf nyiidf yniidf iynidf yinidf iiyndf iiyndf iyindf yiindf iyindf yiindf ndiyif dniyif nidyif indyif dinyif idnyif ndyiif dnyiif nydiif yndiif dyniif ydniif niydif inydif nyidif ynidif iyndif yindif diynif idynif dyinif ydinif iydnif yidnif idiynf diiynf iidynf iidynf diiynf idiynf idyinf diyinf iydinf yidinf dyiinf ydiinf iiydnf iiydnf iyidnf yiidnf iyidnf yiidnf diyinf idyinf dyiinf ydiinf iydinf yidinf nidfyi indfyi ndifyi dnifyi idnfyi dinfyi nifdyi infdyi nfidyi fnidyi ifndyi findyi ndfiyi dnfiyi nfdiyi fndiyi dfniyi fdniyi idfnyi difnyi ifdnyi fidnyi dfinyi fdinyi nidyfi indyfi ndiyfi dniyfi idnyfi dinyfi niydfi inydfi nyidfi ynidfi iyndfi yindfi ndyifi dnyifi nydifi yndifi dynifi ydnifi idynfi diynfi iydnfi yidnfi dyinfi ydinfi nifydi infydi nfiydi fniydi ifnydi finydi niyfdi inyfdi nyifdi ynifdi iynfdi yinfdi nfyidi fnyidi nyfidi ynfidi fynidi yfnidi ifyndi fiyndi iyfndi yifndi fyindi yfindi ndfyii dnfyii nfdyii fndyii dfnyii fdnyii ndyfii dnyfii nydfii yndfii dynfii ydnfii nfydii fnydii nyfdii ynfdii fyndii yfndii dfynii fdynii dyfnii ydfnii fydnii yfdnii idfyni difyni ifdyni fidyni dfiyni fdiyni idyfni diyfni iydfni yidfni dyifni ydifni ifydni fiydni iyfdni yifdni fyidni yfidni dfyini fdyini dyfini ydfini fydini yfdini niifyd inifyd niifyd inifyd iinfyd iinfyd nifiyd infiyd nfiiyd fniiyd ifniyd finiyd nifiyd infiyd nfiiyd fniiyd ifniyd finiyd iifnyd iifnyd ifinyd fiinyd ifinyd fiinyd niiyfd iniyfd niiyfd iniyfd iinyfd iinyfd niyifd inyifd nyiifd yniifd iynifd yinifd niyifd inyifd nyiifd yniifd iynifd yinifd iiynfd iiynfd iyinfd yiinfd iyinfd yiinfd nifyid infyid nfiyid fniyid ifnyid finyid niyfid inyfid nyifid ynifid iynfid yinfid nfyiid fnyiid nyfiid ynfiid fyniid yfniid ifynid fiynid iyfnid yifnid fyinid yfinid nifyid infyid nfiyid fniyid ifnyid finyid niyfid inyfid nyifid ynifid iynfid yinfid nfyiid fnyiid nyfiid ynfiid fyniid yfniid ifynid fiynid iyfnid yifnid fyinid yfinid iifynd iifynd ifiynd fiiynd ifiynd fiiynd iiyfnd iiyfnd iyifnd yiifnd iyifnd yiifnd ifyind fiyind iyfind yifind fyiind yfiind ifyind fiyind iyfind yifind fyiind yfiind ndifyi dnifyi nidfyi indfyi dinfyi idnfyi ndfiyi dnfiyi nfdiyi fndiyi dfniyi fdniyi nifdyi infdyi nfidyi fnidyi ifndyi findyi difnyi idfnyi dfinyi fdinyi ifdnyi fidnyi ndiyfi dniyfi nidyfi indyfi dinyfi idnyfi ndyifi dnyifi nydifi yndifi dynifi ydnifi niydfi inydfi nyidfi ynidfi iyndfi yindfi diynfi idynfi dyinfi ydinfi iydnfi yidnfi ndfyii dnfyii nfdyii fndyii dfnyii fdnyii ndyfii dnyfii nydfii yndfii dynfii ydnfii nfydii fnydii nyfdii ynfdii fyndii yfndii dfynii fdynii dyfnii ydfnii fydnii yfdnii nifydi infydi nfiydi fniydi ifnydi finydi niyfdi inyfdi nyifdi ynifdi iynfdi yinfdi nfyidi fnyidi nyfidi ynfidi fynidi yfnidi ifyndi fiyndi iyfndi yifndi fyindi yfindi difyni idfyni dfiyni fdiyni ifdyni fidyni diyfni idyfni dyifni ydifni iydfni yidfni dfyini fdyini dyfini ydfini fydini yfdini ifydni fiydni iyfdni yifdni fyidni yfidni idifyn diifyn iidfyn iidfyn diifyn idifyn idfiyn difiyn ifdiyn fidiyn dfiiyn fdiiyn iifdyn iifdyn ifidyn fiidyn ifidyn fiidyn difiyn idfiyn dfiiyn fdiiyn ifdiyn fidiyn idiyfn diiyfn iidyfn iidyfn diiyfn idiyfn idyifn diyifn iydifn yidifn dyiifn ydiifn iiydfn iiydfn iyidfn yiidfn iyidfn yiidfn diyifn idyifn dyiifn ydiifn iydifn yidifn idfyin difyin ifdyin fidyin dfiyin fdiyin idyfin diyfin iydfin yidfin dyifin ydifin ifydin fiydin iyfdin yifdin fyidin yfidin dfyiin fdyiin dyfiin ydfiin fydiin yfdiin iifydn iifydn ifiydn fiiydn ifiydn fiiydn iiyfdn iiyfdn iyifdn yiifdn iyifdn yiifdn ifyidn fiyidn iyfidn yifidn fyiidn yfiidn ifyidn fiyidn iyfidn yifidn fyiidn yfiidn difyin idfyin dfiyin fdiyin ifdyin fidyin diyfin idyfin dyifin ydifin iydfin yidfin dfyiin fdyiin dyfiin ydfiin fydiin yfdiin ifydin fiydin iyfdin yifdin fyidin yfidin
Note: these 'words' (valid or invalid) are all the permutations of the word nidify. These words are obtained by scrambling the letters in nidify.