cosign ocsign csoign scoign oscign socign coisgn ocisgn ciosgn icosgn oicsgn iocsgn csiogn sciogn cisogn icsogn sicogn iscogn osicgn soicgn oiscgn ioscgn siocgn isocgn cosgin ocsgin csogin scogin oscgin socgin cogsin ocgsin cgosin gcosin ogcsin gocsin csgoin scgoin cgsoin gcsoin sgcoin gscoin osgcin sogcin ogscin goscin sgocin gsocin coigsn ocigsn ciogsn icogsn oicgsn iocgsn cogisn ocgisn cgoisn gcoisn ogcisn gocisn cigosn icgosn cgiosn gciosn igcosn gicosn oigcsn iogcsn ogicsn goicsn igocsn giocsn csigon scigon cisgon icsgon sicgon iscgon csgion scgion cgsion gcsion sgcion gscion cigson icgson cgison gcison igcson gicson sigcon isgcon sgicon gsicon igscon giscon osigcn soigcn oisgcn iosgcn siogcn isogcn osgicn sogicn ogsicn gosicn sgoicn gsoicn oigscn iogscn ogiscn goiscn igoscn gioscn sigocn isgocn sgiocn gsiocn igsocn gisocn cosing ocsing csoing scoing oscing socing coisng ocisng ciosng icosng oicsng iocsng csiong sciong cisong icsong sicong iscong osicng soicng oiscng ioscng siocng isocng cosnig ocsnig csonig sconig oscnig socnig consig ocnsig cnosig ncosig oncsig nocsig csnoig scnoig cnsoig ncsoig sncoig nscoig osncig soncig onscig noscig snocig nsocig coinsg ocinsg cionsg iconsg oicnsg iocnsg conisg ocnisg cnoisg ncoisg oncisg nocisg cinosg icnosg cniosg nciosg incosg nicosg oincsg ioncsg onicsg noicsg inocsg niocsg csinog scinog cisnog icsnog sicnog iscnog csniog scniog cnsiog ncsiog snciog nsciog cinsog icnsog cnisog ncisog incsog nicsog sincog isncog snicog nsicog inscog niscog osincg soincg oisncg iosncg sioncg isoncg osnicg sonicg onsicg nosicg snoicg nsoicg oinscg ionscg oniscg noiscg inoscg nioscg sinocg isnocg sniocg nsiocg insocg nisocg cosgni ocsgni csogni scogni oscgni socgni cogsni ocgsni cgosni gcosni ogcsni gocsni csgoni scgoni cgsoni gcsoni sgconi gsconi osgcni sogcni ogscni goscni sgocni gsocni cosngi ocsngi csongi scongi oscngi socngi consgi ocnsgi cnosgi ncosgi oncsgi nocsgi csnogi scnogi cnsogi ncsogi sncogi nscogi osncgi soncgi onscgi noscgi snocgi nsocgi cognsi ocgnsi cgonsi gconsi ogcnsi gocnsi congsi ocngsi cnogsi ncogsi oncgsi nocgsi cgnosi gcnosi cngosi ncgosi gncosi ngcosi ogncsi goncsi ongcsi nogcsi gnocsi ngocsi csgnoi scgnoi cgsnoi gcsnoi sgcnoi gscnoi csngoi scngoi cnsgoi ncsgoi sncgoi nscgoi cgnsoi gcnsoi cngsoi ncgsoi gncsoi ngcsoi sgncoi gsncoi sngcoi nsgcoi gnscoi ngscoi osgnci sognci ogsnci gosnci sgonci gsonci osngci songci onsgci nosgci snogci nsogci ognsci gonsci ongsci nogsci gnosci ngosci sgnoci gsnoci sngoci nsgoci gnsoci ngsoci coigns ocigns ciogns icogns oicgns iocgns cogins ocgins cgoins gcoins ogcins gocins cigons icgons cgions gcions igcons gicons oigcns iogcns ogicns goicns igocns giocns coings ocings ciongs icongs oicngs iocngs conigs ocnigs cnoigs ncoigs oncigs nocigs cinogs icnogs cniogs nciogs incogs nicogs oincgs ioncgs onicgs noicgs inocgs niocgs cognis ocgnis cgonis gconis ogcnis gocnis congis ocngis cnogis ncogis oncgis nocgis cgnois gcnois cngois ncgois gncois ngcois ogncis goncis ongcis nogcis gnocis ngocis cignos icgnos cginos gcinos igcnos gicnos cingos icngos cnigos ncigos incgos nicgos cgnios gcnios cngios ncgios gncios ngcios igncos gincos ingcos nigcos gnicos ngicos oigncs iogncs ogincs goincs igoncs gioncs oingcs iongcs onigcs noigcs inogcs niogcs ognics gonics ongics nogics gnoics ngoics ignocs ginocs ingocs nigocs gniocs ngiocs csigno scigno cisgno icsgno sicgno iscgno csgino scgino cgsino gcsino sgcino gscino cigsno icgsno cgisno gcisno igcsno gicsno sigcno isgcno sgicno gsicno igscno giscno csingo scingo cisngo icsngo sicngo iscngo csnigo scnigo cnsigo ncsigo sncigo nscigo cinsgo icnsgo cnisgo ncisgo incsgo nicsgo sincgo isncgo snicgo nsicgo inscgo niscgo csgnio scgnio cgsnio gcsnio sgcnio gscnio csngio scngio cnsgio ncsgio sncgio nscgio cgnsio gcnsio cngsio ncgsio gncsio ngcsio sgncio gsncio sngcio nsgcio gnscio ngscio cignso icgnso cginso gcinso igcnso gicnso cingso icngso cnigso ncigso incgso nicgso cgniso gcniso cngiso ncgiso gnciso ngciso igncso gincso ingcso nigcso gnicso ngicso signco isgnco sginco gsinco igsnco gisnco singco isngco snigco nsigco insgco nisgco sgnico gsnico sngico nsgico gnsico ngsico ignsco ginsco ingsco nigsco gnisco ngisco osignc soignc oisgnc iosgnc siognc isognc osginc soginc ogsinc gosinc sgoinc gsoinc oigsnc iogsnc ogisnc goisnc igosnc giosnc sigonc isgonc sgionc gsionc igsonc gisonc osingc soingc oisngc iosngc siongc isongc osnigc sonigc onsigc nosigc snoigc nsoigc oinsgc ionsgc onisgc noisgc inosgc niosgc sinogc isnogc sniogc nsiogc insogc nisogc osgnic sognic ogsnic gosnic sgonic gsonic osngic songic onsgic nosgic snogic nsogic ognsic gonsic ongsic nogsic gnosic ngosic sgnoic gsnoic sngoic nsgoic gnsoic ngsoic oignsc iognsc oginsc goinsc igonsc gionsc oingsc iongsc onigsc noigsc inogsc niogsc ognisc gonisc ongisc nogisc gnoisc ngoisc ignosc ginosc ingosc nigosc gniosc ngiosc signoc isgnoc sginoc gsinoc igsnoc gisnoc singoc isngoc snigoc nsigoc insgoc nisgoc sgnioc gsnioc sngioc nsgioc gnsioc ngsioc ignsoc ginsoc ingsoc nigsoc gnisoc ngisoc
Note: these 'words' (valid or invalid) are all the permutations of the word cosign. These words are obtained by scrambling the letters in cosign.