opters poters otpers topers ptoers tpoers opetrs poetrs oeptrs eoptrs peotrs epotrs oteprs toeprs oetprs eotprs teoprs etoprs pteors tpeors petors eptors tepors etpors optres potres otpres topres ptores tpores oprtes portes orptes roptes protes rpotes otrpes torpes ortpes rotpes tropes rtopes ptroes tproes prtoes rptoes trpoes rtpoes operts poerts oeprts eoprts peorts eports oprets porets orpets ropets proets rpoets oerpts eorpts orepts roepts eropts reopts perots eprots preots rpeots erpots repots oterps toerps oetrps eotrps teorps etorps otreps toreps orteps roteps troeps rtoeps oertps eortps oretps roetps erotps reotps terops etrops treops rteops ertops retops pteros tperos petros eptros tepros etpros ptreos tpreos prteos rpteos trpeos rtpeos pertos eprtos pretos rpetos erptos reptos terpos etrpos trepos rtepos ertpos retpos optesr potesr otpesr topesr ptoesr tpoesr opetsr poetsr oeptsr eoptsr peotsr epotsr otepsr toepsr oetpsr eotpsr teopsr etopsr pteosr tpeosr petosr eptosr teposr etposr optser potser otpser topser ptoser tposer opster poster ospter sopter psoter spoter otsper tosper ostper sotper tsoper stoper ptsoer tpsoer pstoer sptoer tspoer stpoer opestr poestr oepstr eopstr peostr epostr opsetr posetr ospetr sopetr psoetr spoetr oesptr eosptr oseptr soeptr esoptr seoptr pesotr epsotr pseotr speotr espotr sepotr otespr toespr oetspr eotspr teospr etospr otsepr tosepr ostepr sotepr tsoepr stoepr oestpr eostpr osetpr soetpr esotpr seotpr tesopr etsopr tseopr steopr estopr setopr ptesor tpesor petsor eptsor tepsor etpsor ptseor tpseor psteor spteor tspeor stpeor pestor epstor psetor spetor esptor septor tespor etspor tsepor stepor estpor setpor optrse potrse otprse toprse ptorse tporse oprtse portse orptse roptse protse rpotse otrpse torpse ortpse rotpse tropse rtopse ptrose tprose prtose rptose trpose rtpose optsre potsre otpsre topsre ptosre tposre opstre postre osptre soptre psotre spotre otspre tospre ostpre sotpre tsopre stopre ptsore tpsore pstore sptore tspore stpore oprste porste orpste ropste proste rposte opsrte posrte osprte soprte psorte sporte orspte rospte osrpte sorpte rsopte sropte prsote rpsote psrote sprote rspote srpote otrspe torspe ortspe rotspe trospe rtospe otsrpe tosrpe ostrpe sotrpe tsorpe storpe orstpe rostpe osrtpe sortpe rsotpe srotpe trsope rtsope tsrope strope rstope srtope ptrsoe tprsoe prtsoe rptsoe trpsoe rtpsoe ptsroe tpsroe pstroe sptroe tsproe stproe prstoe rpstoe psrtoe sprtoe rsptoe srptoe trspoe rtspoe tsrpoe strpoe rstpoe srtpoe operst poerst oeprst eoprst peorst eporst oprest porest orpest ropest proest rpoest oerpst eorpst orepst roepst eropst reopst perost eprost preost rpeost erpost repost opesrt poesrt oepsrt eopsrt peosrt eposrt opsert posert ospert sopert psoert spoert oesprt eosprt oseprt soeprt esoprt seoprt pesort epsort pseort speort esport seport oprset porset orpset ropset proset rposet opsret posret ospret sopret psoret sporet orspet rospet osrpet sorpet rsopet sropet prsoet rpsoet psroet sproet rspoet srpoet oerspt eorspt orespt roespt erospt reospt oesrpt eosrpt oserpt soerpt esorpt seorpt orsept rosept osrept sorept rsoept sroept ersopt resopt esropt seropt rseopt sreopt persot eprsot presot rpesot erpsot repsot pesrot epsrot pserot sperot esprot seprot prseot rpseot psreot spreot rspeot srpeot erspot respot esrpot serpot rsepot srepot otersp toersp oetrsp eotrsp teorsp etorsp otresp toresp ortesp rotesp troesp rtoesp oertsp eortsp oretsp roetsp erotsp reotsp terosp etrosp treosp rteosp ertosp retosp otesrp toesrp oetsrp eotsrp teosrp etosrp otserp toserp osterp soterp tsoerp stoerp oestrp eostrp osetrp soetrp esotrp seotrp tesorp etsorp tseorp steorp estorp setorp otrsep torsep ortsep rotsep trosep rtosep otsrep tosrep ostrep sotrep tsorep storep orstep rostep osrtep sortep rsotep srotep trsoep rtsoep tsroep stroep rstoep srtoep oerstp eorstp orestp roestp erostp reostp oesrtp eosrtp osertp soertp esortp seortp orsetp rosetp osretp soretp rsoetp sroetp ersotp resotp esrotp serotp rseotp sreotp tersop etrsop tresop rtesop ertsop retsop tesrop etsrop tserop sterop estrop setrop trseop rtseop tsreop streop rsteop srteop erstop restop esrtop sertop rsetop sretop pterso tperso petrso eptrso teprso etprso ptreso tpreso prteso rpteso trpeso rtpeso pertso eprtso pretso rpetso erptso reptso terpso etrpso trepso rtepso ertpso retpso ptesro tpesro petsro eptsro tepsro etpsro ptsero tpsero pstero sptero tspero stpero pestro epstro psetro spetro esptro septro tespro etspro tsepro stepro estpro setpro ptrseo tprseo prtseo rptseo trpseo rtpseo ptsreo tpsreo pstreo sptreo tspreo stpreo prsteo rpsteo psrteo sprteo rspteo srpteo trspeo rtspeo tsrpeo strpeo rstpeo srtpeo persto eprsto presto rpesto erpsto repsto pesrto epsrto pserto sperto esprto seprto prseto rpseto psreto spreto rspeto srpeto erspto respto esrpto serpto rsepto srepto terspo etrspo trespo rtespo ertspo retspo tesrpo etsrpo tserpo sterpo estrpo setrpo trsepo rtsepo tsrepo strepo rstepo srtepo erstpo restpo esrtpo sertpo rsetpo sretpo
Note: these 'words' (valid or invalid) are all the permutations of the word opters. These words are obtained by scrambling the letters in opters.