spirts psirts siprts isprts pisrts ipsrts sprits psrits srpits rspits prsits rpsits sirpts isrpts sripts rsipts irspts rispts pirsts iprsts prists rpists irpsts ripsts spitrs psitrs siptrs isptrs pistrs ipstrs sptirs pstirs stpirs tspirs ptsirs tpsirs sitprs istprs stiprs tsiprs itsprs tisprs pitsrs iptsrs ptisrs tpisrs itpsrs tipsrs sprtis psrtis srptis rsptis prstis rpstis sptris pstris stpris tspris ptsris tpsris srtpis rstpis strpis tsrpis rtspis trspis prtsis rptsis ptrsis tprsis rtpsis trpsis sirtps isrtps sritps rsitps irstps ristps sitrps istrps stirps tsirps itsrps tisrps srtips rstips strips tsrips rtsips trsips irtsps ritsps itrsps tirsps rtisps trisps pirtss iprtss pritss rpitss irptss riptss pitrss iptrss ptirss tpirss itprss tiprss prtiss rptiss ptriss tpriss rtpiss trpiss irtpss ritpss itrpss tirpss rtipss tripss spirst psirst siprst isprst pisrst ipsrst sprist psrist srpist rspist prsist rpsist sirpst isrpst sripst rsipst irspst rispst pirsst iprsst prisst rpisst irpsst ripsst spisrt psisrt sipsrt ispsrt pissrt ipssrt spsirt pssirt sspirt sspirt pssirt spsirt sisprt issprt ssiprt ssiprt issprt sisprt pissrt ipssrt psisrt spisrt ispsrt sipsrt sprsit psrsit srpsit rspsit prssit rpssit spsrit pssrit ssprit ssprit pssrit spsrit srspit rsspit ssrpit ssrpit rsspit srspit prssit rpssit psrsit sprsit rspsit srpsit sirspt isrspt srispt rsispt irsspt risspt sisrpt issrpt ssirpt ssirpt issrpt sisrpt srsipt rssipt ssript ssript rssipt srsipt irsspt risspt isrspt sirspt rsispt srispt pirsst iprsst prisst rpisst irpsst ripsst pisrst ipsrst psirst spirst isprst siprst prsist rpsist psrist sprist rspist srpist irspst rispst isrpst sirpst rsipst sripst spitsr psitsr siptsr isptsr pistsr ipstsr sptisr pstisr stpisr tspisr ptsisr tpsisr sitpsr istpsr stipsr tsipsr itspsr tispsr pitssr iptssr ptissr tpissr itpssr tipssr spistr psistr sipstr ispstr pisstr ipsstr spsitr pssitr sspitr sspitr pssitr spsitr sisptr issptr ssiptr ssiptr issptr sisptr pisstr ipsstr psistr spistr ispstr sipstr sptsir pstsir stpsir tspsir ptssir tpssir spstir psstir ssptir ssptir psstir spstir stspir tsspir sstpir sstpir tsspir stspir ptssir tpssir pstsir sptsir tspsir stpsir sitspr istspr stispr tsispr itsspr tisspr sistpr isstpr ssitpr ssitpr isstpr sistpr stsipr tssipr sstipr sstipr tssipr stsipr itsspr tisspr istspr sitspr tsispr stispr pitssr iptssr ptissr tpissr itpssr tipssr pistsr ipstsr psitsr spitsr isptsr siptsr ptsisr tpsisr pstisr sptisr tspisr stpisr itspsr tispsr istpsr sitpsr tsipsr stipsr sprtsi psrtsi srptsi rsptsi prstsi rpstsi sptrsi pstrsi stprsi tsprsi ptsrsi tpsrsi srtpsi rstpsi strpsi tsrpsi rtspsi trspsi prtssi rptssi ptrssi tprssi rtpssi trpssi sprsti psrsti srpsti rspsti prssti rpssti spsrti pssrti ssprti ssprti pssrti spsrti srspti rsspti ssrpti ssrpti rsspti srspti prssti rpssti psrsti sprsti rspsti srpsti sptsri pstsri stpsri tspsri ptssri tpssri spstri psstri ssptri ssptri psstri spstri stspri tsspri sstpri sstpri tsspri stspri ptssri tpssri pstsri sptsri tspsri stpsri srtspi rstspi strspi tsrspi rtsspi trsspi srstpi rsstpi ssrtpi ssrtpi rsstpi srstpi stsrpi tssrpi sstrpi sstrpi tssrpi stsrpi rtsspi trsspi rstspi srtspi tsrspi strspi prtssi rptssi ptrssi tprssi rtpssi trpssi prstsi rpstsi psrtsi sprtsi rsptsi srptsi ptsrsi tpsrsi pstrsi sptrsi tsprsi stprsi rtspsi trspsi rstpsi srtpsi tsrpsi strpsi sirtsp isrtsp sritsp rsitsp irstsp ristsp sitrsp istrsp stirsp tsirsp itsrsp tisrsp srtisp rstisp strisp tsrisp rtsisp trsisp irtssp ritssp itrssp tirssp rtissp trissp sirstp isrstp sristp rsistp irsstp risstp sisrtp issrtp ssirtp ssirtp issrtp sisrtp srsitp rssitp ssritp ssritp rssitp srsitp irsstp risstp isrstp sirstp rsistp sristp sitsrp istsrp stisrp tsisrp itssrp tissrp sistrp isstrp ssitrp ssitrp isstrp sistrp stsirp tssirp sstirp sstirp tssirp stsirp itssrp tissrp istsrp sitsrp tsisrp stisrp srtsip rstsip strsip tsrsip rtssip trssip srstip rsstip ssrtip ssrtip rsstip srstip stsrip tssrip sstrip sstrip tssrip stsrip rtssip trssip rstsip srtsip tsrsip strsip irtssp ritssp itrssp tirssp rtissp trissp irstsp ristsp isrtsp sirtsp rsitsp sritsp itsrsp tisrsp istrsp sitrsp tsirsp stirsp rtsisp trsisp rstisp srtisp tsrisp strisp pirtss iprtss pritss rpitss irptss riptss pitrss iptrss ptirss tpirss itprss tiprss prtiss rptiss ptriss tpriss rtpiss trpiss irtpss ritpss itrpss tirpss rtipss tripss pirsts iprsts prists rpists irpsts ripsts pisrts ipsrts psirts spirts isprts siprts prsits rpsits psrits sprits rspits srpits irspts rispts isrpts sirpts rsipts sripts pitsrs iptsrs ptisrs tpisrs itpsrs tipsrs pistrs ipstrs psitrs spitrs isptrs siptrs ptsirs tpsirs pstirs sptirs tspirs stpirs itsprs tisprs istprs sitprs tsiprs stiprs prtsis rptsis ptrsis tprsis rtpsis trpsis prstis rpstis psrtis sprtis rsptis srptis ptsris tpsris pstris sptris tspris stpris rtspis trspis rstpis srtpis tsrpis strpis irtsps ritsps itrsps tirsps rtisps trisps irstps ristps isrtps sirtps rsitps sritps itsrps tisrps istrps sitrps tsirps stirps rtsips trsips rstips srtips tsrips strips
Note: these 'words' (valid or invalid) are all the permutations of the word spirts. These words are obtained by scrambling the letters in spirts.