postin opstin psotin spotin osptin soptin potsin optsin ptosin tposin otpsin topsin pstoin sptoin ptsoin tpsoin stpoin tspoin ostpin sotpin otspin tospin stopin tsopin positn opsitn psoitn spoitn ospitn sopitn poistn opistn piostn ipostn oipstn iopstn psiotn spiotn pisotn ipsotn sipotn ispotn osiptn soiptn oisptn iosptn sioptn isoptn potisn optisn ptoisn tpoisn otpisn topisn poitsn opitsn piotsn ipotsn oiptsn ioptsn ptiosn tpiosn pitosn iptosn tiposn itposn otipsn toipsn oitpsn iotpsn tiopsn itopsn pstion sption ptsion tpsion stpion tspion psiton spiton piston ipston sipton ispton ptison tpison pitson iptson tipson itpson stipon tsipon sitpon istpon tispon itspon ostipn sotipn otsipn tosipn stoipn tsoipn ositpn soitpn oistpn iostpn siotpn isotpn otispn toispn oitspn iotspn tiospn itospn stiopn tsiopn sitopn istopn tisopn itsopn postni opstni psotni spotni osptni soptni potsni optsni ptosni tposni otpsni topsni pstoni sptoni ptsoni tpsoni stponi tsponi ostpni sotpni otspni tospni stopni tsopni posnti opsnti psonti sponti ospnti sopnti ponsti opnsti pnosti nposti onpsti nopsti psnoti spnoti pnsoti npsoti snpoti nspoti osnpti sonpti onspti nospti snopti nsopti potnsi optnsi ptonsi tponsi otpnsi topnsi pontsi opntsi pnotsi npotsi onptsi noptsi ptnosi tpnosi pntosi nptosi tnposi ntposi otnpsi tonpsi ontpsi notpsi tnopsi ntopsi pstnoi sptnoi ptsnoi tpsnoi stpnoi tspnoi psntoi spntoi pnstoi npstoi snptoi nsptoi ptnsoi tpnsoi pntsoi nptsoi tnpsoi ntpsoi stnpoi tsnpoi sntpoi nstpoi tnspoi ntspoi ostnpi sotnpi otsnpi tosnpi stonpi tsonpi osntpi sontpi onstpi nostpi snotpi nsotpi otnspi tonspi ontspi notspi tnospi ntospi stnopi tsnopi sntopi nstopi tnsopi ntsopi posint opsint psoint spoint ospint sopint poisnt opisnt piosnt iposnt oipsnt iopsnt psiont spiont pisont ipsont sipont ispont osipnt soipnt oispnt iospnt siopnt isopnt posnit opsnit psonit sponit ospnit sopnit ponsit opnsit pnosit nposit onpsit nopsit psnoit spnoit pnsoit npsoit snpoit nspoit osnpit sonpit onspit nospit snopit nsopit poinst opinst pionst iponst oipnst iopnst ponist opnist pnoist npoist onpist nopist pinost ipnost pniost npiost inpost nipost oinpst ionpst onipst noipst inopst niopst psinot spinot pisnot ipsnot sipnot ispnot psniot spniot pnsiot npsiot snpiot nspiot pinsot ipnsot pnisot npisot inpsot nipsot sinpot isnpot snipot nsipot inspot nispot osinpt soinpt oisnpt iosnpt sionpt isonpt osnipt sonipt onsipt nosipt snoipt nsoipt oinspt ionspt onispt noispt inospt niospt sinopt isnopt sniopt nsiopt insopt nisopt potins optins ptoins tpoins otpins topins poitns opitns piotns ipotns oiptns ioptns ptions tpions pitons iptons tipons itpons otipns toipns oitpns iotpns tiopns itopns potnis optnis ptonis tponis otpnis topnis pontis opntis pnotis npotis onptis noptis ptnois tpnois pntois nptois tnpois ntpois otnpis tonpis ontpis notpis tnopis ntopis points opints pionts iponts oipnts iopnts ponits opnits pnoits npoits onpits nopits pinots ipnots pniots npiots inpots nipots oinpts ionpts onipts noipts inopts niopts ptinos tpinos pitnos iptnos tipnos itpnos ptnios tpnios pntios nptios tnpios ntpios pintos ipntos pnitos npitos inptos niptos tinpos itnpos tnipos ntipos intpos nitpos otinps toinps oitnps iotnps tionps itonps otnips tonips ontips notips tnoips ntoips ointps iontps onitps noitps inotps niotps tinops itnops tniops ntiops intops nitops pstino sptino ptsino tpsino stpino tspino psitno spitno pistno ipstno siptno isptno ptisno tpisno pitsno iptsno tipsno itpsno stipno tsipno sitpno istpno tispno itspno pstnio sptnio ptsnio tpsnio stpnio tspnio psntio spntio pnstio npstio snptio nsptio ptnsio tpnsio pntsio nptsio tnpsio ntpsio stnpio tsnpio sntpio nstpio tnspio ntspio psinto spinto pisnto ipsnto sipnto ispnto psnito spnito pnsito npsito snpito nspito pinsto ipnsto pnisto npisto inpsto nipsto sinpto isnpto snipto nsipto inspto nispto ptinso tpinso pitnso iptnso tipnso itpnso ptniso tpniso pntiso nptiso tnpiso ntpiso pintso ipntso pnitso npitso inptso niptso tinpso itnpso tnipso ntipso intpso nitpso stinpo tsinpo sitnpo istnpo tisnpo itsnpo stnipo tsnipo sntipo nstipo tnsipo ntsipo sintpo isntpo snitpo nsitpo instpo nistpo tinspo itnspo tnispo ntispo intspo nitspo ostinp sotinp otsinp tosinp stoinp tsoinp ositnp soitnp oistnp iostnp siotnp isotnp otisnp toisnp oitsnp iotsnp tiosnp itosnp stionp tsionp sitonp istonp tisonp itsonp ostnip sotnip otsnip tosnip stonip tsonip osntip sontip onstip nostip snotip nsotip otnsip tonsip ontsip notsip tnosip ntosip stnoip tsnoip sntoip nstoip tnsoip ntsoip osintp sointp oisntp iosntp siontp isontp osnitp sonitp onsitp nositp snoitp nsoitp oinstp ionstp onistp noistp inostp niostp sinotp isnotp sniotp nsiotp insotp nisotp otinsp toinsp oitnsp iotnsp tionsp itonsp otnisp tonisp ontisp notisp tnoisp ntoisp ointsp iontsp onitsp noitsp inotsp niotsp tinosp itnosp tniosp ntiosp intosp nitosp stinop tsinop sitnop istnop tisnop itsnop stniop tsniop sntiop nstiop tnsiop ntsiop sintop isntop snitop nsitop instop nistop tinsop itnsop tnisop ntisop intsop nitsop
Note: these 'words' (valid or invalid) are all the permutations of the word postin. These words are obtained by scrambling the letters in postin.