rotans ortans rtoans troans otrans torans roatns oratns raotns arotns oartns aortns rtaons traons ratons artons tarons atrons otarns toarns oatrns aotrns taorns atorns rotnas ortnas rtonas tronas otrnas tornas rontas orntas rnotas nrotas onrtas nortas rtnoas trnoas rntoas nrtoas tnroas ntroas otnras tonras ontras notras tnoras ntoras roants orants raonts aronts oarnts aornts ronats ornats rnoats nroats onrats norats ranots arnots rnaots nraots anrots narots oanrts aonrts onarts noarts anorts naorts rtanos tranos ratnos artnos tarnos atrnos rtnaos trnaos rntaos nrtaos tnraos ntraos rantos arntos rnatos nratos anrtos nartos tanros atnros tnaros ntaros antros natros otanrs toanrs oatnrs aotnrs taonrs atonrs otnars tonars ontars notars tnoars ntoars oantrs aontrs onatrs noatrs anotrs naotrs tanors atnors tnaors ntaors antors nators rotasn ortasn rtoasn troasn otrasn torasn roatsn oratsn raotsn arotsn oartsn aortsn rtaosn traosn ratosn artosn tarosn atrosn otarsn toarsn oatrsn aotrsn taorsn atorsn rotsan ortsan rtosan trosan otrsan torsan rostan orstan rsotan srotan osrtan sortan rtsoan trsoan rstoan srtoan tsroan stroan otsran tosran ostran sotran tsoran storan roastn orastn raostn arostn oarstn aorstn rosatn orsatn rsoatn sroatn osratn soratn rasotn arsotn rsaotn sraotn asrotn sarotn oasrtn aosrtn osartn soartn asortn saortn rtason trason ratson artson tarson atrson rtsaon trsaon rstaon srtaon tsraon straon raston arston rsaton sraton asrton sarton tasron atsron tsaron staron astron satron otasrn toasrn oatsrn aotsrn taosrn atosrn otsarn tosarn ostarn sotarn tsoarn stoarn oastrn aostrn osatrn soatrn asotrn saotrn tasorn atsorn tsaorn staorn astorn satorn rotnsa ortnsa rtonsa tronsa otrnsa tornsa rontsa orntsa rnotsa nrotsa onrtsa nortsa rtnosa trnosa rntosa nrtosa tnrosa ntrosa otnrsa tonrsa ontrsa notrsa tnorsa ntorsa rotsna ortsna rtosna trosna otrsna torsna rostna orstna rsotna srotna osrtna sortna rtsona trsona rstona srtona tsrona strona otsrna tosrna ostrna sotrna tsorna storna ronsta ornsta rnosta nrosta onrsta norsta rosnta orsnta rsonta sronta osrnta sornta rnsota nrsota rsnota srnota nsrota snrota onsrta nosrta osnrta sonrta nsorta snorta rtnsoa trnsoa rntsoa nrtsoa tnrsoa ntrsoa rtsnoa trsnoa rstnoa srtnoa tsrnoa strnoa rnstoa nrstoa rsntoa srntoa nsrtoa snrtoa tnsroa ntsroa tsnroa stnroa nstroa sntroa otnsra tonsra ontsra notsra tnosra ntosra otsnra tosnra ostnra sotnra tsonra stonra onstra nostra osntra sontra nsotra snotra tnsora ntsora tsnora stnora nstora sntora roanst oranst raonst aronst oarnst aornst ronast ornast rnoast nroast onrast norast ranost arnost rnaost nraost anrost narost oanrst aonrst onarst noarst anorst naorst roasnt orasnt raosnt arosnt oarsnt aorsnt rosant orsant rsoant sroant osrant sorant rasont arsont rsaont sraont asront saront oasrnt aosrnt osarnt soarnt asornt saornt ronsat ornsat rnosat nrosat onrsat norsat rosnat orsnat rsonat sronat osrnat sornat rnsoat nrsoat rsnoat srnoat nsroat snroat onsrat nosrat osnrat sonrat nsorat snorat ransot arnsot rnasot nrasot anrsot narsot rasnot arsnot rsanot sranot asrnot sarnot rnsaot nrsaot rsnaot srnaot nsraot snraot ansrot nasrot asnrot sanrot nsarot snarot oansrt aonsrt onasrt noasrt anosrt naosrt oasnrt aosnrt osanrt soanrt asonrt saonrt onsart nosart osnart sonart nsoart snoart ansort nasort asnort sanort nsaort snaort rtanso transo ratnso artnso tarnso atrnso rtnaso trnaso rntaso nrtaso tnraso ntraso rantso arntso rnatso nratso anrtso nartso tanrso atnrso tnarso ntarso antrso natrso rtasno trasno ratsno artsno tarsno atrsno rtsano trsano rstano srtano tsrano strano rastno arstno rsatno sratno asrtno sartno tasrno atsrno tsarno starno astrno satrno rtnsao trnsao rntsao nrtsao tnrsao ntrsao rtsnao trsnao rstnao srtnao tsrnao strnao rnstao nrstao rsntao srntao nsrtao snrtao tnsrao ntsrao tsnrao stnrao nstrao sntrao ransto arnsto rnasto nrasto anrsto narsto rasnto arsnto rsanto sranto asrnto sarnto rnsato nrsato rsnato srnato nsrato snrato ansrto nasrto asnrto sanrto nsarto snarto tansro atnsro tnasro ntasro antsro natsro tasnro atsnro tsanro stanro astnro satnro tnsaro ntsaro tsnaro stnaro nstaro sntaro anstro nastro asntro santro nsatro snatro otansr toansr oatnsr aotnsr taonsr atonsr otnasr tonasr ontasr notasr tnoasr ntoasr oantsr aontsr onatsr noatsr anotsr naotsr tanosr atnosr tnaosr ntaosr antosr natosr otasnr toasnr oatsnr aotsnr taosnr atosnr otsanr tosanr ostanr sotanr tsoanr stoanr oastnr aostnr osatnr soatnr asotnr saotnr tasonr atsonr tsaonr staonr astonr satonr otnsar tonsar ontsar notsar tnosar ntosar otsnar tosnar ostnar sotnar tsonar stonar onstar nostar osntar sontar nsotar snotar tnsoar ntsoar tsnoar stnoar nstoar sntoar oanstr aonstr onastr noastr anostr naostr oasntr aosntr osantr soantr asontr saontr onsatr nosatr osnatr sonatr nsoatr snoatr ansotr nasotr asnotr sanotr nsaotr snaotr tansor atnsor tnasor ntasor antsor natsor tasnor atsnor tsanor stanor astnor satnor tnsaor ntsaor tsnaor stnaor nstaor sntaor anstor nastor asntor santor nsator snator
Note: these 'words' (valid or invalid) are all the permutations of the word rotans. These words are obtained by scrambling the letters in rotans.