doning odning dnoing ndoing onding noding doinng odinng dionng idonng oidnng iodnng dniong ndiong dinong idnong nidong indong onidng noidng oindng iondng niodng inodng donnig odnnig dnonig ndonig ondnig nodnig donnig odnnig dnonig ndonig ondnig nodnig dnnoig ndnoig dnnoig ndnoig nndoig nndoig onndig nondig onndig nondig nnodig nnodig doinng odinng dionng idonng oidnng iodnng doning odning dnoing ndoing onding noding dinong idnong dniong ndiong indong nidong oindng iondng onidng noidng inodng niodng dninog ndinog dinnog idnnog nidnog indnog dnniog ndniog dnniog ndniog nndiog nndiog dinnog idnnog dninog ndinog indnog nidnog nindog inndog nnidog nnidog inndog nindog onindg noindg oinndg ionndg niondg inondg onnidg nonidg onnidg nonidg nnoidg nnoidg oinndg ionndg onindg noindg inondg niondg ninodg innodg nniodg nniodg innodg ninodg donign odnign dnoign ndoign ondign nodign doingn odingn diongn idongn oidngn iodngn dniogn ndiogn dinogn idnogn nidogn indogn onidgn noidgn oindgn iondgn niodgn inodgn dongin odngin dnogin ndogin ondgin nodgin dognin odgnin dgonin gdonin ogdnin godnin dngoin ndgoin dgnoin gdnoin ngdoin gndoin ongdin nogdin ogndin gondin ngodin gnodin doignn odignn diognn idognn oidgnn iodgnn doginn odginn dgoinn gdoinn ogdinn godinn digonn idgonn dgionn gdionn igdonn gidonn oigdnn iogdnn ogidnn goidnn igodnn giodnn dnigon ndigon dingon idngon nidgon indgon dngion ndgion dgnion gdnion ngdion gndion dignon idgnon dginon gdinon igdnon gidnon nigdon ingdon ngidon gnidon igndon gindon onigdn noigdn oingdn iongdn niogdn inogdn ongidn nogidn ognidn gonidn ngoidn gnoidn oigndn iogndn ogindn goindn igondn giondn nigodn ingodn ngiodn gniodn ignodn ginodn donngi odnngi dnongi ndongi ondngi nodngi donngi odnngi dnongi ndongi ondngi nodngi dnnogi ndnogi dnnogi ndnogi nndogi nndogi onndgi nondgi onndgi nondgi nnodgi nnodgi dongni odngni dnogni ndogni ondgni nodgni dognni odgnni dgonni gdonni ogdnni godnni dngoni ndgoni dgnoni gdnoni ngdoni gndoni ongdni nogdni ogndni gondni ngodni gnodni dongni odngni dnogni ndogni ondgni nodgni dognni odgnni dgonni gdonni ogdnni godnni dngoni ndgoni dgnoni gdnoni ngdoni gndoni ongdni nogdni ogndni gondni ngodni gnodni dnngoi ndngoi dnngoi ndngoi nndgoi nndgoi dngnoi ndgnoi dgnnoi gdnnoi ngdnoi gndnoi dngnoi ndgnoi dgnnoi gdnnoi ngdnoi gndnoi nngdoi nngdoi ngndoi gnndoi ngndoi gnndoi onngdi nongdi onngdi nongdi nnogdi nnogdi ongndi nogndi ognndi gonndi ngondi gnondi ongndi nogndi ognndi gonndi ngondi gnondi nngodi nngodi ngnodi gnnodi ngnodi gnnodi doingn odingn diongn idongn oidngn iodngn donign odnign dnoign ndoign ondign nodign dinogn idnogn dniogn ndiogn indogn nidogn oindgn iondgn onidgn noidgn inodgn niodgn doignn odignn diognn idognn oidgnn iodgnn doginn odginn dgoinn gdoinn ogdinn godinn digonn idgonn dgionn gdionn igdonn gidonn oigdnn iogdnn ogidnn goidnn igodnn giodnn dongin odngin dnogin ndogin ondgin nodgin dognin odgnin dgonin gdonin ogdnin godnin dngoin ndgoin dgnoin gdnoin ngdoin gndoin ongdin nogdin ogndin gondin ngodin gnodin dingon idngon dnigon ndigon indgon nidgon dignon idgnon dginon gdinon igdnon gidnon dngion ndgion dgnion gdnion ngdion gndion ingdon nigdon igndon gindon ngidon gnidon oingdn iongdn onigdn noigdn inogdn niogdn oigndn iogndn ogindn goindn igondn giondn ongidn nogidn ognidn gonidn ngoidn gnoidn ingodn nigodn ignodn ginodn ngiodn gniodn dningo ndingo dinngo idnngo nidngo indngo dnnigo ndnigo dnnigo ndnigo nndigo nndigo dinngo idnngo dningo ndingo indngo nidngo nindgo inndgo nnidgo nnidgo inndgo nindgo dnigno ndigno dingno idngno nidgno indgno dngino ndgino dgnino gdnino ngdino gndino dignno idgnno dginno gdinno igdnno gidnno nigdno ingdno ngidno gnidno igndno gindno dnngio ndngio dnngio ndngio nndgio nndgio dngnio ndgnio dgnnio gdnnio ngdnio gndnio dngnio ndgnio dgnnio gdnnio ngdnio gndnio nngdio nngdio ngndio gnndio ngndio gnndio dingno idngno dnigno ndigno indgno nidgno dignno idgnno dginno gdinno igdnno gidnno dngino ndgino dgnino gdnino ngdino gndino ingdno nigdno igndno gindno ngidno gnidno ningdo inngdo nnigdo nnigdo inngdo ningdo nigndo ingndo ngindo gnindo ignndo ginndo nngido nngido ngnido gnnido ngnido gnnido ingndo nigndo ignndo ginndo ngindo gnindo oningd noingd oinngd ionngd niongd inongd onnigd nonigd onnigd nonigd nnoigd nnoigd oinngd ionngd oningd noingd inongd niongd ninogd innogd nniogd nniogd innogd ninogd onignd noignd oingnd iongnd niognd inognd ongind nogind ognind gonind ngoind gnoind oignnd iognnd oginnd goinnd igonnd gionnd nigond ingond ngiond gniond ignond ginond onngid nongid onngid nongid nnogid nnogid ongnid nognid ognnid gonnid ngonid gnonid ongnid nognid ognnid gonnid ngonid gnonid nngoid nngoid ngnoid gnnoid ngnoid gnnoid oingnd iongnd onignd noignd inognd niognd oignnd iognnd oginnd goinnd igonnd gionnd ongind nogind ognind gonind ngoind gnoind ingond nigond ignond ginond ngiond gniond ningod inngod nnigod nnigod inngod ningod nignod ingnod nginod gninod ignnod ginnod nngiod nngiod ngniod gnniod ngniod gnniod ingnod nignod ignnod ginnod nginod gninod
Note: these 'words' (valid or invalid) are all the permutations of the word doning. These words are obtained by scrambling the letters in doning.