indigo nidigo idnigo dinigo ndiigo dniigo inidgo niidgo iindgo iindgo niidgo inidgo idingo diingo iidngo iidngo diingo idingo ndiigo dniigo nidigo indigo dinigo idnigo indgio nidgio idngio dingio ndigio dnigio ingdio nigdio igndio gindio ngidio gnidio idgnio dignio igdnio gidnio dginio gdinio ndgiio dngiio ngdiio gndiio dgniio gdniio inigdo niigdo iingdo iingdo niigdo inigdo ingido nigido ignido ginido ngiido gniido iigndo iigndo igindo giindo igindo giindo nigido ingido ngiido gniido ignido ginido idigno diigno iidgno iidgno diigno idigno idgino digino igdino gidino dgiino gdiino iigdno iigdno igidno giidno igidno giidno digino idgino dgiino gdiino igdino gidino ndigio dnigio nidgio indgio dingio idngio ndgiio dngiio ngdiio gndiio dgniio gdniio nigdio ingdio ngidio gnidio igndio gindio dignio idgnio dginio gdinio igdnio gidnio indiog nidiog idniog diniog ndiiog dniiog inidog niidog iindog iindog niidog inidog idinog diinog iidnog iidnog diinog idinog ndiiog dniiog nidiog indiog diniog idniog indoig nidoig idnoig dinoig ndioig dnioig inodig niodig iondig oindig noidig onidig idonig dionig iodnig oidnig doinig odinig ndoiig dnoiig nodiig ondiig doniig odniig iniodg niiodg iinodg iinodg niiodg iniodg inoidg nioidg ionidg oinidg noiidg oniidg iiondg iiondg ioindg oiindg ioindg oiindg nioidg inoidg noiidg oniidg ionidg oinidg idiong diiong iidong iidong diiong idiong idoing dioing ioding oiding doiing odiing iiodng iiodng ioidng oiidng ioidng oiidng dioing idoing doiing odiing ioding oiding ndioig dnioig nidoig indoig dinoig idnoig ndoiig dnoiig nodiig ondiig doniig odniig niodig inodig noidig onidig iondig oindig dionig idonig doinig odinig iodnig oidnig indgoi nidgoi idngoi dingoi ndigoi dnigoi ingdoi nigdoi igndoi gindoi ngidoi gnidoi idgnoi dignoi igdnoi gidnoi dginoi gdinoi ndgioi dngioi ngdioi gndioi dgnioi gdnioi indogi nidogi idnogi dinogi ndiogi dniogi inodgi niodgi iondgi oindgi noidgi onidgi idongi diongi iodngi oidngi doingi odingi ndoigi dnoigi nodigi ondigi donigi odnigi ingodi nigodi ignodi ginodi ngiodi gniodi inogdi niogdi iongdi oingdi noigdi onigdi igondi giondi iogndi oigndi goindi ogindi ngoidi gnoidi nogidi ongidi gonidi ognidi idgoni digoni igdoni gidoni dgioni gdioni idogni diogni iodgni oidgni doigni odigni igodni giodni iogdni oigdni goidni ogidni dgoini gdoini dogini odgini godini ogdini ndgoii dngoii ngdoii gndoii dgnoii gdnoii ndogii dnogii nodgii ondgii dongii odngii ngodii gnodii nogdii ongdii gondii ogndii dgonii gdonii dognii odgnii godnii ogdnii inigod niigod iingod iingod niigod inigod ingiod nigiod igniod giniod ngiiod gniiod iignod iignod iginod giinod iginod giinod nigiod ingiod ngiiod gniiod igniod giniod iniogd niiogd iinogd iinogd niiogd iniogd inoigd nioigd ionigd oinigd noiigd oniigd iiongd iiongd ioingd oiingd ioingd oiingd nioigd inoigd noiigd oniigd ionigd oinigd ingoid nigoid ignoid ginoid ngioid gnioid inogid niogid iongid oingid noigid onigid igonid gionid iognid oignid goinid oginid ngoiid gnoiid nogiid ongiid goniid ogniid iigond iigond igiond giiond igiond giiond iiognd iiognd ioignd oiignd ioignd oiignd igoind gioind iogind oigind goiind ogiind igoind gioind iogind oigind goiind ogiind nigoid ingoid ngioid gnioid ignoid ginoid niogid inogid noigid onigid iongid oingid ngoiid gnoiid nogiid ongiid goniid ogniid igonid gionid iognid oignid goinid oginid idigon diigon iidgon iidgon diigon idigon idgion digion igdion gidion dgiion gdiion iigdon iigdon igidon giidon igidon giidon digion idgion dgiion gdiion igdion gidion idiogn diiogn iidogn iidogn diiogn idiogn idoign dioign iodign oidign doiign odiign iiodgn iiodgn ioidgn oiidgn ioidgn oiidgn dioign idoign doiign odiign iodign oidign idgoin digoin igdoin gidoin dgioin gdioin idogin diogin iodgin oidgin doigin odigin igodin giodin iogdin oigdin goidin ogidin dgoiin gdoiin dogiin odgiin godiin ogdiin iigodn iigodn igiodn giiodn igiodn giiodn iiogdn iiogdn ioigdn oiigdn ioigdn oiigdn igoidn gioidn iogidn oigidn goiidn ogiidn igoidn gioidn iogidn oigidn goiidn ogiidn digoin idgoin dgioin gdioin igdoin gidoin diogin idogin doigin odigin iodgin oidgin dgoiin gdoiin dogiin odgiin godiin ogdiin igodin giodin iogdin oigdin goidin ogidin ndigoi dnigoi nidgoi indgoi dingoi idngoi ndgioi dngioi ngdioi gndioi dgnioi gdnioi nigdoi ingdoi ngidoi gnidoi igndoi gindoi dignoi idgnoi dginoi gdinoi igdnoi gidnoi ndiogi dniogi nidogi indogi dinogi idnogi ndoigi dnoigi nodigi ondigi donigi odnigi niodgi inodgi noidgi onidgi iondgi oindgi diongi idongi doingi odingi iodngi oidngi ndgoii dngoii ngdoii gndoii dgnoii gdnoii ndogii dnogii nodgii ondgii dongii odngii ngodii gnodii nogdii ongdii gondii ogndii dgonii gdonii dognii odgnii godnii ogdnii nigodi ingodi ngiodi gniodi ignodi ginodi niogdi inogdi noigdi onigdi iongdi oingdi ngoidi gnoidi nogidi ongidi gonidi ognidi igondi giondi iogndi oigndi goindi ogindi digoni idgoni dgioni gdioni igdoni gidoni diogni idogni doigni odigni iodgni oidgni dgoini gdoini dogini odgini godini ogdini igodni giodni iogdni oigdni goidni ogidni
Note: these 'words' (valid or invalid) are all the permutations of the word indigo. These words are obtained by scrambling the letters in indigo.