nandus anndus nnadus nnadus anndus nandus nadnus andnus ndanus dnanus adnnus dannus nndaus nndaus ndnaus dnnaus ndnaus dnnaus andnus nadnus adnnus dannus ndanus dnanus nanuds annuds nnauds nnauds annuds nanuds naunds anunds nuands unands aunnds uannds nnuads nnuads nunads unnads nunads unnads anunds naunds aunnds uannds nuands unands naduns anduns ndauns dnauns adnuns danuns naudns anudns nuadns unadns aundns uandns nduans dnuans nudans undans dunans udnans adunns daunns audnns uadnns duanns udanns nnduas nnduas ndnuas dnnuas ndnuas dnnuas nnudas nnudas nundas unndas nundas unndas ndunas dnunas nudnas undnas dunnas udnnas ndunas dnunas nudnas undnas dunnas udnnas anduns naduns adnuns danuns ndauns dnauns anudns naudns aundns uandns nuadns unadns adunns daunns audnns uadnns duanns udanns nduans dnuans nudans undans dunans udnans nandsu anndsu nnadsu nnadsu anndsu nandsu nadnsu andnsu ndansu dnansu adnnsu dannsu nndasu nndasu ndnasu dnnasu ndnasu dnnasu andnsu nadnsu adnnsu dannsu ndansu dnansu nansdu annsdu nnasdu nnasdu annsdu nansdu nasndu ansndu nsandu snandu asnndu sanndu nnsadu nnsadu nsnadu snnadu nsnadu snnadu ansndu nasndu asnndu sanndu nsandu snandu nadsnu andsnu ndasnu dnasnu adnsnu dansnu nasdnu ansdnu nsadnu snadnu asndnu sandnu ndsanu dnsanu nsdanu sndanu dsnanu sdnanu adsnnu dasnnu asdnnu sadnnu dsannu sdannu nndsau nndsau ndnsau dnnsau ndnsau dnnsau nnsdau nnsdau nsndau snndau nsndau snndau ndsnau dnsnau nsdnau sndnau dsnnau sdnnau ndsnau dnsnau nsdnau sndnau dsnnau sdnnau andsnu nadsnu adnsnu dansnu ndasnu dnasnu ansdnu nasdnu asndnu sandnu nsadnu snadnu adsnnu dasnnu asdnnu sadnnu dsannu sdannu ndsanu dnsanu nsdanu sndanu dsnanu sdnanu nanusd annusd nnausd nnausd annusd nanusd naunsd anunsd nuansd unansd aunnsd uannsd nnuasd nnuasd nunasd unnasd nunasd unnasd anunsd naunsd aunnsd uannsd nuansd unansd nansud annsud nnasud nnasud annsud nansud nasnud ansnud nsanud snanud asnnud sannud nnsaud nnsaud nsnaud snnaud nsnaud snnaud ansnud nasnud asnnud sannud nsanud snanud nausnd anusnd nuasnd unasnd aunsnd uansnd nasund ansund nsaund snaund asnund sanund nusand unsand nsuand snuand usnand sunand ausnnd uasnnd asunnd saunnd usannd suannd nnusad nnusad nunsad unnsad nunsad unnsad nnsuad nnsuad nsnuad snnuad nsnuad snnuad nusnad unsnad nsunad snunad usnnad sunnad nusnad unsnad nsunad snunad usnnad sunnad anusnd nausnd aunsnd uansnd nuasnd unasnd ansund nasund asnund sanund nsaund snaund ausnnd uasnnd asunnd saunnd usannd suannd nusand unsand nsuand snuand usnand sunand nadusn andusn ndausn dnausn adnusn danusn naudsn anudsn nuadsn unadsn aundsn uandsn nduasn dnuasn nudasn undasn dunasn udnasn adunsn daunsn audnsn uadnsn duansn udansn nadsun andsun ndasun dnasun adnsun dansun nasdun ansdun nsadun snadun asndun sandun ndsaun dnsaun nsdaun sndaun dsnaun sdnaun adsnun dasnun asdnun sadnun dsanun sdanun nausdn anusdn nuasdn unasdn aunsdn uansdn nasudn ansudn nsaudn snaudn asnudn sanudn nusadn unsadn nsuadn snuadn usnadn sunadn ausndn uasndn asundn saundn usandn suandn ndusan dnusan nudsan undsan dunsan udnsan ndsuan dnsuan nsduan snduan dsnuan sdnuan nusdan unsdan nsudan snudan usndan sundan dusnan udsnan dsunan sdunan usdnan sudnan adusnn dausnn audsnn uadsnn duasnn udasnn adsunn dasunn asdunn sadunn dsaunn sdaunn ausdnn uasdnn asudnn saudnn usadnn suadnn dusann udsann dsuann sduann usdann sudann nndusa nndusa ndnusa dnnusa ndnusa dnnusa nnudsa nnudsa nundsa unndsa nundsa unndsa ndunsa dnunsa nudnsa undnsa dunnsa udnnsa ndunsa dnunsa nudnsa undnsa dunnsa udnnsa nndsua nndsua ndnsua dnnsua ndnsua dnnsua nnsdua nnsdua nsndua snndua nsndua snndua ndsnua dnsnua nsdnua sndnua dsnnua sdnnua ndsnua dnsnua nsdnua sndnua dsnnua sdnnua nnusda nnusda nunsda unnsda nunsda unnsda nnsuda nnsuda nsnuda snnuda nsnuda snnuda nusnda unsnda nsunda snunda usnnda sunnda nusnda unsnda nsunda snunda usnnda sunnda ndusna dnusna nudsna undsna dunsna udnsna ndsuna dnsuna nsduna snduna dsnuna sdnuna nusdna unsdna nsudna snudna usndna sundna dusnna udsnna dsunna sdunna usdnna sudnna ndusna dnusna nudsna undsna dunsna udnsna ndsuna dnsuna nsduna snduna dsnuna sdnuna nusdna unsdna nsudna snudna usndna sundna dusnna udsnna dsunna sdunna usdnna sudnna andusn nadusn adnusn danusn ndausn dnausn anudsn naudsn aundsn uandsn nuadsn unadsn adunsn daunsn audnsn uadnsn duansn udansn nduasn dnuasn nudasn undasn dunasn udnasn andsun nadsun adnsun dansun ndasun dnasun ansdun nasdun asndun sandun nsadun snadun adsnun dasnun asdnun sadnun dsanun sdanun ndsaun dnsaun nsdaun sndaun dsnaun sdnaun anusdn nausdn aunsdn uansdn nuasdn unasdn ansudn nasudn asnudn sanudn nsaudn snaudn ausndn uasndn asundn saundn usandn suandn nusadn unsadn nsuadn snuadn usnadn sunadn adusnn dausnn audsnn uadsnn duasnn udasnn adsunn dasunn asdunn sadunn dsaunn sdaunn ausdnn uasdnn asudnn saudnn usadnn suadnn dusann udsann dsuann sduann usdann sudann ndusan dnusan nudsan undsan dunsan udnsan ndsuan dnsuan nsduan snduan dsnuan sdnuan nusdan unsdan nsudan snudan usndan sundan dusnan udsnan dsunan sdunan usdnan sudnan
Note: these 'words' (valid or invalid) are all the permutations of the word nandus. These words are obtained by scrambling the letters in nandus.