inurns niurns iunrns uinrns nuirns unirns inruns niruns irnuns rinuns nriuns rniuns iurnns uirnns irunns riunns urinns ruinns nurins unrins nruins rnuins urnins runins inunrs niunrs iunnrs uinnrs nuinrs uninrs innurs ninurs innurs ninurs nniurs nniurs iunnrs uinnrs inunrs niunrs uninrs nuinrs nunirs unnirs nnuirs nnuirs unnirs nunirs inrnus nirnus irnnus rinnus nrinus rninus innrus ninrus innrus ninrus nnirus nnirus irnnus rinnus inrnus nirnus rninus nrinus nrnius rnnius nnrius nnrius rnnius nrnius iurnns uirnns irunns riunns urinns ruinns iunrns uinrns inurns niurns unirns nuirns irnuns rinuns inruns niruns rniuns nriuns urnins runins unrins nurins rnuins nruins nurnis unrnis nrunis rnunis urnnis runnis nunris unnris nnuris nnuris unnris nunris nrnuis rnnuis nnruis nnruis rnnuis nrnuis urnnis runnis unrnis nurnis rnunis nrunis inursn niursn iunrsn uinrsn nuirsn unirsn inrusn nirusn irnusn rinusn nriusn rniusn iurnsn uirnsn irunsn riunsn urinsn ruinsn nurisn unrisn nruisn rnuisn urnisn runisn inusrn niusrn iunsrn uinsrn nuisrn unisrn insurn nisurn isnurn sinurn nsiurn sniurn iusnrn uisnrn isunrn siunrn usinrn suinrn nusirn unsirn nsuirn snuirn usnirn sunirn inrsun nirsun irnsun rinsun nrisun rnisun insrun nisrun isnrun sinrun nsirun snirun irsnun risnun isrnun sirnun rsinun srinun nrsiun rnsiun nsriun snriun rsniun srniun iursnn uirsnn irusnn riusnn urisnn ruisnn iusrnn uisrnn isurnn siurnn usirnn suirnn irsunn risunn isrunn sirunn rsiunn sriunn ursinn rusinn usrinn surinn rsuinn sruinn nursin unrsin nrusin rnusin urnsin runsin nusrin unsrin nsurin snurin usnrin sunrin nrsuin rnsuin nsruin snruin rsnuin srnuin ursnin rusnin usrnin surnin rsunin srunin inunsr niunsr iunnsr uinnsr nuinsr uninsr innusr ninusr innusr ninusr nniusr nniusr iunnsr uinnsr inunsr niunsr uninsr nuinsr nunisr unnisr nnuisr nnuisr unnisr nunisr inusnr niusnr iunsnr uinsnr nuisnr unisnr insunr nisunr isnunr sinunr nsiunr sniunr iusnnr uisnnr isunnr siunnr usinnr suinnr nusinr unsinr nsuinr snuinr usninr suninr innsur ninsur innsur ninsur nnisur nnisur insnur nisnur isnnur sinnur nsinur sninur insnur nisnur isnnur sinnur nsinur sninur nnsiur nnsiur nsniur snniur nsniur snniur iunsnr uinsnr inusnr niusnr unisnr nuisnr iusnnr uisnnr isunnr siunnr usinnr suinnr insunr nisunr isnunr sinunr nsiunr sniunr unsinr nusinr usninr suninr nsuinr snuinr nunsir unnsir nnusir nnusir unnsir nunsir nusnir unsnir nsunir snunir usnnir sunnir nnsuir nnsuir nsnuir snnuir nsnuir snnuir unsnir nusnir usnnir sunnir nsunir snunir inrnsu nirnsu irnnsu rinnsu nrinsu rninsu innrsu ninrsu innrsu ninrsu nnirsu nnirsu irnnsu rinnsu inrnsu nirnsu rninsu nrinsu nrnisu rnnisu nnrisu nnrisu rnnisu nrnisu inrsnu nirsnu irnsnu rinsnu nrisnu rnisnu insrnu nisrnu isnrnu sinrnu nsirnu snirnu irsnnu risnnu isrnnu sirnnu rsinnu srinnu nrsinu rnsinu nsrinu snrinu rsninu srninu innsru ninsru innsru ninsru nnisru nnisru insnru nisnru isnnru sinnru nsinru sninru insnru nisnru isnnru sinnru nsinru sninru nnsiru nnsiru nsniru snniru nsniru snniru irnsnu rinsnu inrsnu nirsnu rnisnu nrisnu irsnnu risnnu isrnnu sirnnu rsinnu srinnu insrnu nisrnu isnrnu sinrnu nsirnu snirnu rnsinu nrsinu rsninu srninu nsrinu snrinu nrnsiu rnnsiu nnrsiu nnrsiu rnnsiu nrnsiu nrsniu rnsniu nsrniu snrniu rsnniu srnniu nnsriu nnsriu nsnriu snnriu nsnriu snnriu rnsniu nrsniu rsnniu srnniu nsrniu snrniu iurnsn uirnsn irunsn riunsn urinsn ruinsn iunrsn uinrsn inursn niursn unirsn nuirsn irnusn rinusn inrusn nirusn rniusn nriusn urnisn runisn unrisn nurisn rnuisn nruisn iursnn uirsnn irusnn riusnn urisnn ruisnn iusrnn uisrnn isurnn siurnn usirnn suirnn irsunn risunn isrunn sirunn rsiunn sriunn ursinn rusinn usrinn surinn rsuinn sruinn iunsrn uinsrn inusrn niusrn unisrn nuisrn iusnrn uisnrn isunrn siunrn usinrn suinrn insurn nisurn isnurn sinurn nsiurn sniurn unsirn nusirn usnirn sunirn nsuirn snuirn irnsun rinsun inrsun nirsun rnisun nrisun irsnun risnun isrnun sirnun rsinun srinun insrun nisrun isnrun sinrun nsirun snirun rnsiun nrsiun rsniun srniun nsriun snriun urnsin runsin unrsin nursin rnusin nrusin ursnin rusnin usrnin surnin rsunin srunin unsrin nusrin usnrin sunrin nsurin snurin rnsuin nrsuin rsnuin srnuin nsruin snruin nurnsi unrnsi nrunsi rnunsi urnnsi runnsi nunrsi unnrsi nnursi nnursi unnrsi nunrsi nrnusi rnnusi nnrusi nnrusi rnnusi nrnusi urnnsi runnsi unrnsi nurnsi rnunsi nrunsi nursni unrsni nrusni rnusni urnsni runsni nusrni unsrni nsurni snurni usnrni sunrni nrsuni rnsuni nsruni snruni rsnuni srnuni ursnni rusnni usrnni surnni rsunni srunni nunsri unnsri nnusri nnusri unnsri nunsri nusnri unsnri nsunri snunri usnnri sunnri nnsuri nnsuri nsnuri snnuri nsnuri snnuri unsnri nusnri usnnri sunnri nsunri snunri nrnsui rnnsui nnrsui nnrsui rnnsui nrnsui nrsnui rnsnui nsrnui snrnui rsnnui srnnui nnsrui nnsrui nsnrui snnrui nsnrui snnrui rnsnui nrsnui rsnnui srnnui nsrnui snrnui urnsni runsni unrsni nursni rnusni nrusni ursnni rusnni usrnni surnni rsunni srunni unsrni nusrni usnrni sunrni nsurni snurni rnsuni nrsuni rsnuni srnuni nsruni snruni
Note: these 'words' (valid or invalid) are all the permutations of the word inurns. These words are obtained by scrambling the letters in inurns.