optics potics otpics topics ptoics tpoics opitcs poitcs oiptcs ioptcs piotcs ipotcs otipcs toipcs oitpcs iotpcs tiopcs itopcs ptiocs tpiocs pitocs iptocs tipocs itpocs optcis potcis otpcis topcis ptocis tpocis opctis poctis ocptis coptis pcotis cpotis otcpis tocpis octpis cotpis tcopis ctopis ptcois tpcois pctois cptois tcpois ctpois opicts poicts oipcts iopcts piocts ipocts opcits pocits ocpits copits pcoits cpoits oicpts iocpts ocipts coipts icopts ciopts picots ipcots pciots cpiots icpots cipots oticps toicps oitcps iotcps tiocps itocps otcips tocips octips cotips tcoips ctoips oictps ioctps ocitps coitps icotps ciotps ticops itcops tciops ctiops ictops citops pticos tpicos pitcos iptcos tipcos itpcos ptcios tpcios pctios cptios tcpios ctpios pictos ipctos pcitos cpitos icptos ciptos ticpos itcpos tcipos ctipos ictpos citpos optisc potisc otpisc topisc ptoisc tpoisc opitsc poitsc oiptsc ioptsc piotsc ipotsc otipsc toipsc oitpsc iotpsc tiopsc itopsc ptiosc tpiosc pitosc iptosc tiposc itposc optsic potsic otpsic topsic ptosic tposic opstic postic osptic soptic psotic spotic otspic tospic ostpic sotpic tsopic stopic ptsoic tpsoic pstoic sptoic tspoic stpoic opistc poistc oipstc iopstc piostc ipostc opsitc positc ospitc sopitc psoitc spoitc oisptc iosptc osiptc soiptc isoptc sioptc pisotc ipsotc psiotc spiotc ispotc sipotc otispc toispc oitspc iotspc tiospc itospc otsipc tosipc ostipc sotipc tsoipc stoipc oistpc iostpc ositpc soitpc isotpc siotpc tisopc itsopc tsiopc stiopc istopc sitopc ptisoc tpisoc pitsoc iptsoc tipsoc itpsoc ptsioc tpsioc pstioc sptioc tspioc stpioc pistoc ipstoc psitoc spitoc isptoc siptoc tispoc itspoc tsipoc stipoc istpoc sitpoc optcsi potcsi otpcsi topcsi ptocsi tpocsi opctsi poctsi ocptsi coptsi pcotsi cpotsi otcpsi tocpsi octpsi cotpsi tcopsi ctopsi ptcosi tpcosi pctosi cptosi tcposi ctposi optsci potsci otpsci topsci ptosci tposci opstci postci osptci soptci psotci spotci otspci tospci ostpci sotpci tsopci stopci ptsoci tpsoci pstoci sptoci tspoci stpoci opcsti pocsti ocpsti copsti pcosti cposti opscti poscti ospcti sopcti psocti spocti ocspti cospti oscpti socpti csopti scopti pcsoti cpsoti pscoti spcoti cspoti scpoti otcspi tocspi octspi cotspi tcospi ctospi otscpi toscpi ostcpi sotcpi tsocpi stocpi ocstpi costpi osctpi soctpi csotpi scotpi tcsopi ctsopi tscopi stcopi cstopi sctopi ptcsoi tpcsoi pctsoi cptsoi tcpsoi ctpsoi ptscoi tpscoi pstcoi sptcoi tspcoi stpcoi pcstoi cpstoi psctoi spctoi csptoi scptoi tcspoi ctspoi tscpoi stcpoi cstpoi sctpoi opicst poicst oipcst iopcst piocst ipocst opcist pocist ocpist copist pcoist cpoist oicpst iocpst ocipst coipst icopst ciopst picost ipcost pciost cpiost icpost cipost opisct poisct oipsct iopsct piosct iposct opsict posict ospict sopict psoict spoict oispct iospct osipct soipct isopct siopct pisoct ipsoct psioct spioct ispoct sipoct opcsit pocsit ocpsit copsit pcosit cposit opscit poscit ospcit sopcit psocit spocit ocspit cospit oscpit socpit csopit scopit pcsoit cpsoit pscoit spcoit cspoit scpoit oicspt iocspt ocispt coispt icospt ciospt oiscpt ioscpt osicpt soicpt isocpt siocpt ocsipt cosipt oscipt socipt csoipt scoipt icsopt cisopt iscopt sicopt csiopt sciopt picsot ipcsot pcisot cpisot icpsot cipsot piscot ipscot psicot spicot ispcot sipcot pcsiot cpsiot psciot spciot cspiot scpiot icspot cispot iscpot sicpot csipot scipot oticsp toicsp oitcsp iotcsp tiocsp itocsp otcisp tocisp octisp cotisp tcoisp ctoisp oictsp ioctsp ocitsp coitsp icotsp ciotsp ticosp itcosp tciosp ctiosp ictosp citosp otiscp toiscp oitscp iotscp tioscp itoscp otsicp tosicp osticp soticp tsoicp stoicp oistcp iostcp ositcp soitcp isotcp siotcp tisocp itsocp tsiocp stiocp istocp sitocp otcsip tocsip octsip cotsip tcosip ctosip otscip toscip ostcip sotcip tsocip stocip ocstip costip osctip soctip csotip scotip tcsoip ctsoip tscoip stcoip cstoip sctoip oicstp iocstp ocistp coistp icostp ciostp oisctp iosctp osictp soictp isoctp sioctp ocsitp cositp oscitp socitp csoitp scoitp icsotp cisotp iscotp sicotp csiotp sciotp ticsop itcsop tcisop ctisop ictsop citsop tiscop itscop tsicop sticop istcop sitcop tcsiop ctsiop tsciop stciop cstiop sctiop icstop cistop isctop sictop csitop scitop pticso tpicso pitcso iptcso tipcso itpcso ptciso tpciso pctiso cptiso tcpiso ctpiso pictso ipctso pcitso cpitso icptso ciptso ticpso itcpso tcipso ctipso ictpso citpso ptisco tpisco pitsco iptsco tipsco itpsco ptsico tpsico pstico sptico tspico stpico pistco ipstco psitco spitco isptco siptco tispco itspco tsipco stipco istpco sitpco ptcsio tpcsio pctsio cptsio tcpsio ctpsio ptscio tpscio pstcio sptcio tspcio stpcio pcstio cpstio psctio spctio csptio scptio tcspio ctspio tscpio stcpio cstpio sctpio picsto ipcsto pcisto cpisto icpsto cipsto piscto ipscto psicto spicto ispcto sipcto pcsito cpsito pscito spcito cspito scpito icspto cispto iscpto sicpto csipto scipto ticspo itcspo tcispo ctispo ictspo citspo tiscpo itscpo tsicpo sticpo istcpo sitcpo tcsipo ctsipo tscipo stcipo cstipo sctipo icstpo cistpo isctpo sictpo csitpo scitpo
Note: these 'words' (valid or invalid) are all the permutations of the word optics. These words are obtained by scrambling the letters in optics.