ursine rusine usrine surine rsuine sruine urisne ruisne uirsne iursne riusne irusne usirne suirne uisrne iusrne siurne isurne rsiune sriune risune irsune sirune isrune ursnie rusnie usrnie surnie rsunie srunie urnsie runsie unrsie nursie rnusie nrusie usnrie sunrie unsrie nusrie snurie nsurie rsnuie srnuie rnsuie nrsuie snruie nsruie urinse ruinse uirnse iurnse riunse irunse urnise runise unrise nurise rnuise nruise uinrse iunrse unirse nuirse inurse niurse rinuse irnuse rniuse nriuse inruse niruse usinre suinre uisnre iusnre siunre isunre usnire sunire unsire nusire snuire nsuire uinsre iunsre unisre nuisre inusre niusre sinure isnure sniure nsiure insure nisure rsinue srinue risnue irsnue sirnue isrnue rsniue srniue rnsiue nrsiue snriue nsriue rinsue irnsue rnisue nrisue inrsue nirsue sinrue isnrue snirue nsirue insrue nisrue ursien rusien usrien surien rsuien sruien urisen ruisen uirsen iursen riusen irusen usiren suiren uisren iusren siuren isuren rsiuen sriuen risuen irsuen siruen isruen ursein rusein usrein surein rsuein sruein uresin ruesin uersin eursin reusin erusin userin suerin uesrin eusrin seurin esurin rseuin sreuin resuin ersuin seruin esruin uriesn ruiesn uiresn iuresn riuesn iruesn ureisn rueisn uerisn eurisn reuisn eruisn uiersn iuersn ueirsn euirsn ieursn eiursn rieusn ireusn reiusn eriusn ierusn eirusn usiern suiern uisern iusern siuern isuern useirn sueirn uesirn eusirn seuirn esuirn uiesrn iuesrn ueisrn euisrn ieusrn eiusrn sieurn iseurn seiurn esiurn iesurn eisurn rsieun srieun riseun irseun sireun isreun rseiun sreiun resiun ersiun seriun esriun riesun iresun reisun erisun iersun eirsun sierun iserun seirun esirun iesrun eisrun ursnei rusnei usrnei surnei rsunei srunei urnsei runsei unrsei nursei rnusei nrusei usnrei sunrei unsrei nusrei snurei nsurei rsnuei srnuei rnsuei nrsuei snruei nsruei urseni ruseni usreni sureni rsueni srueni uresni ruesni uersni eursni reusni erusni userni suerni uesrni eusrni seurni esurni rseuni sreuni resuni ersuni seruni esruni urnesi runesi unresi nuresi rnuesi nruesi urensi ruensi uernsi eurnsi reunsi erunsi unersi nuersi uenrsi eunrsi neursi enursi rneusi nreusi renusi ernusi nerusi enrusi usneri suneri unseri nuseri snueri nsueri usenri suenri uesnri eusnri seunri esunri unesri nuesri uensri eunsri neusri enusri sneuri nseuri senuri esnuri nesuri ensuri rsneui srneui rnseui nrseui snreui nsreui rsenui srenui resnui ersnui sernui esrnui rnesui nresui rensui ernsui nersui enrsui snerui nserui senrui esnrui nesrui ensrui urines ruines uirnes iurnes riunes irunes urnies runies unries nuries rnuies nruies uinres iunres unires nuires inures niures rinues irnues rniues nriues inrues nirues uriens ruiens uirens iurens riuens iruens ureins rueins uerins eurins reuins eruins uierns iuerns ueirns euirns ieurns eiurns rieuns ireuns reiuns eriuns ieruns eiruns urneis runeis unreis nureis rnueis nrueis urenis ruenis uernis eurnis reunis erunis uneris nueris uenris eunris neuris enuris rneuis nreuis renuis ernuis neruis enruis uiners iuners uniers nuiers inuers niuers uienrs iuenrs ueinrs euinrs ieunrs eiunrs uneirs nueirs uenirs eunirs neuirs enuirs ineurs nieurs ienurs einurs neiurs eniurs rineus irneus rnieus nrieus inreus nireus rienus irenus reinus erinus iernus eirnus rneius nreius renius ernius nerius enrius inerus nierus ienrus einrus neirus enirus usiner suiner uisner iusner siuner isuner usnier sunier unsier nusier snuier nsuier uinser iunser uniser nuiser inuser niuser sinuer isnuer sniuer nsiuer insuer nisuer usienr suienr uisenr iusenr siuenr isuenr useinr sueinr uesinr eusinr seuinr esuinr uiesnr iuesnr ueisnr euisnr ieusnr eiusnr sieunr iseunr seiunr esiunr iesunr eisunr usneir suneir unseir nuseir snueir nsueir usenir suenir uesnir eusnir seunir esunir unesir nuesir uensir eunsir neusir enusir sneuir nseuir senuir esnuir nesuir ensuir uinesr iunesr uniesr nuiesr inuesr niuesr uiensr iuensr ueinsr euinsr ieunsr eiunsr uneisr nueisr uenisr eunisr neuisr enuisr ineusr nieusr ienusr einusr neiusr eniusr sineur isneur snieur nsieur inseur niseur sienur isenur seinur esinur iesnur eisnur sneiur nseiur seniur esniur nesiur ensiur inesur niesur iensur einsur neisur enisur rsineu srineu risneu irsneu sirneu isrneu rsnieu srnieu rnsieu nrsieu snrieu nsrieu rinseu irnseu rniseu nriseu inrseu nirseu sinreu isnreu snireu nsireu insreu nisreu rsienu srienu risenu irsenu sirenu isrenu rseinu sreinu resinu ersinu serinu esrinu riesnu iresnu reisnu erisnu iersnu eirsnu siernu isernu seirnu esirnu iesrnu eisrnu rsneiu srneiu rnseiu nrseiu snreiu nsreiu rseniu sreniu resniu ersniu serniu esrniu rnesiu nresiu rensiu ernsiu nersiu enrsiu sneriu nseriu senriu esnriu nesriu ensriu rinesu irnesu rniesu nriesu inresu niresu riensu irensu reinsu erinsu iernsu eirnsu rneisu nreisu renisu ernisu nerisu enrisu inersu niersu ienrsu einrsu neirsu enirsu sineru isneru snieru nsieru inseru niseru sienru isenru seinru esinru iesnru eisnru sneiru nseiru seniru esniru nesiru ensiru inesru niesru iensru einsru neisru enisru
Note: these 'words' (valid or invalid) are all the permutations of the word ursine. These words are obtained by scrambling the letters in ursine.