fundis ufndis fnudis nfudis unfdis nufdis fudnis ufdnis fdunis dfunis udfnis dufnis fnduis nfduis fdnuis dfnuis ndfuis dnfuis undfis nudfis udnfis dunfis ndufis dnufis funids ufnids fnuids nfuids unfids nufids fuinds ufinds fiunds ifunds uifnds iufnds fniuds nfiuds finuds ifnuds nifuds infuds unifds nuifds uinfds iunfds niufds inufds fudins ufdins fduins dfuins udfins dufins fuidns ufidns fiudns ifudns uifdns iufdns fdiuns dfiuns fiduns ifduns difuns idfuns udifns duifns uidfns iudfns diufns idufns fndius nfdius fdnius dfnius ndfius dnfius fnidus nfidus findus ifndus nifdus infdus fdinus dfinus fidnus ifdnus difnus idfnus ndifus dnifus nidfus indfus dinfus idnfus undifs nudifs udnifs dunifs nduifs dnuifs unidfs nuidfs uindfs iundfs niudfs inudfs udinfs duinfs uidnfs iudnfs diunfs idunfs ndiufs dniufs nidufs indufs dinufs idnufs fundsi ufndsi fnudsi nfudsi unfdsi nufdsi fudnsi ufdnsi fdunsi dfunsi udfnsi dufnsi fndusi nfdusi fdnusi dfnusi ndfusi dnfusi undfsi nudfsi udnfsi dunfsi ndufsi dnufsi funsdi ufnsdi fnusdi nfusdi unfsdi nufsdi fusndi ufsndi fsundi sfundi usfndi sufndi fnsudi nfsudi fsnudi sfnudi nsfudi snfudi unsfdi nusfdi usnfdi sunfdi nsufdi snufdi fudsni ufdsni fdusni dfusni udfsni dufsni fusdni ufsdni fsudni sfudni usfdni sufdni fdsuni dfsuni fsduni sfduni dsfuni sdfuni udsfni dusfni usdfni sudfni dsufni sdufni fndsui nfdsui fdnsui dfnsui ndfsui dnfsui fnsdui nfsdui fsndui sfndui nsfdui snfdui fdsnui dfsnui fsdnui sfdnui dsfnui sdfnui ndsfui dnsfui nsdfui sndfui dsnfui sdnfui undsfi nudsfi udnsfi dunsfi ndusfi dnusfi unsdfi nusdfi usndfi sundfi nsudfi snudfi udsnfi dusnfi usdnfi sudnfi dsunfi sdunfi ndsufi dnsufi nsdufi sndufi dsnufi sdnufi funisd ufnisd fnuisd nfuisd unfisd nufisd fuinsd ufinsd fiunsd ifunsd uifnsd iufnsd fniusd nfiusd finusd ifnusd nifusd infusd unifsd nuifsd uinfsd iunfsd niufsd inufsd funsid ufnsid fnusid nfusid unfsid nufsid fusnid ufsnid fsunid sfunid usfnid sufnid fnsuid nfsuid fsnuid sfnuid nsfuid snfuid unsfid nusfid usnfid sunfid nsufid snufid fuisnd ufisnd fiusnd ifusnd uifsnd iufsnd fusind ufsind fsuind sfuind usfind sufind fisund ifsund fsiund sfiund isfund sifund uisfnd iusfnd usifnd suifnd isufnd siufnd fnisud nfisud finsud ifnsud nifsud infsud fnsiud nfsiud fsniud sfniud nsfiud snfiud fisnud ifsnud fsinud sfinud isfnud sifnud nisfud insfud nsifud snifud isnfud sinfud unisfd nuisfd uinsfd iunsfd niusfd inusfd unsifd nusifd usnifd sunifd nsuifd snuifd uisnfd iusnfd usinfd suinfd isunfd siunfd nisufd insufd nsiufd sniufd isnufd sinufd fudisn ufdisn fduisn dfuisn udfisn dufisn fuidsn ufidsn fiudsn ifudsn uifdsn iufdsn fdiusn dfiusn fidusn ifdusn difusn idfusn udifsn duifsn uidfsn iudfsn diufsn idufsn fudsin ufdsin fdusin dfusin udfsin dufsin fusdin ufsdin fsudin sfudin usfdin sufdin fdsuin dfsuin fsduin sfduin dsfuin sdfuin udsfin dusfin usdfin sudfin dsufin sdufin fuisdn ufisdn fiusdn ifusdn uifsdn iufsdn fusidn ufsidn fsuidn sfuidn usfidn sufidn fisudn ifsudn fsiudn sfiudn isfudn sifudn uisfdn iusfdn usifdn suifdn isufdn siufdn fdisun dfisun fidsun ifdsun difsun idfsun fdsiun dfsiun fsdiun sfdiun dsfiun sdfiun fisdun ifsdun fsidun sfidun isfdun sifdun disfun idsfun dsifun sdifun isdfun sidfun udisfn duisfn uidsfn iudsfn diusfn idusfn udsifn dusifn usdifn sudifn dsuifn sduifn uisdfn iusdfn usidfn suidfn isudfn siudfn disufn idsufn dsiufn sdiufn isdufn sidufn fndisu nfdisu fdnisu dfnisu ndfisu dnfisu fnidsu nfidsu findsu ifndsu nifdsu infdsu fdinsu dfinsu fidnsu ifdnsu difnsu idfnsu ndifsu dnifsu nidfsu indfsu dinfsu idnfsu fndsiu nfdsiu fdnsiu dfnsiu ndfsiu dnfsiu fnsdiu nfsdiu fsndiu sfndiu nsfdiu snfdiu fdsniu dfsniu fsdniu sfdniu dsfniu sdfniu ndsfiu dnsfiu nsdfiu sndfiu dsnfiu sdnfiu fnisdu nfisdu finsdu ifnsdu nifsdu infsdu fnsidu nfsidu fsnidu sfnidu nsfidu snfidu fisndu ifsndu fsindu sfindu isfndu sifndu nisfdu insfdu nsifdu snifdu isnfdu sinfdu fdisnu dfisnu fidsnu ifdsnu difsnu idfsnu fdsinu dfsinu fsdinu sfdinu dsfinu sdfinu fisdnu ifsdnu fsidnu sfidnu isfdnu sifdnu disfnu idsfnu dsifnu sdifnu isdfnu sidfnu ndisfu dnisfu nidsfu indsfu dinsfu idnsfu ndsifu dnsifu nsdifu sndifu dsnifu sdnifu nisdfu insdfu nsidfu snidfu isndfu sindfu disnfu idsnfu dsinfu sdinfu isdnfu sidnfu undisf nudisf udnisf dunisf nduisf dnuisf unidsf nuidsf uindsf iundsf niudsf inudsf udinsf duinsf uidnsf iudnsf diunsf idunsf ndiusf dniusf nidusf indusf dinusf idnusf undsif nudsif udnsif dunsif ndusif dnusif unsdif nusdif usndif sundif nsudif snudif udsnif dusnif usdnif sudnif dsunif sdunif ndsuif dnsuif nsduif snduif dsnuif sdnuif unisdf nuisdf uinsdf iunsdf niusdf inusdf unsidf nusidf usnidf sunidf nsuidf snuidf uisndf iusndf usindf suindf isundf siundf nisudf insudf nsiudf sniudf isnudf sinudf udisnf duisnf uidsnf iudsnf diusnf idusnf udsinf dusinf usdinf sudinf dsuinf sduinf uisdnf iusdnf usidnf suidnf isudnf siudnf disunf idsunf dsiunf sdiunf isdunf sidunf ndisuf dnisuf nidsuf indsuf dinsuf idnsuf ndsiuf dnsiuf nsdiuf sndiuf dsniuf sdniuf nisduf insduf nsiduf sniduf isnduf sinduf disnuf idsnuf dsinuf sdinuf isdnuf sidnuf
Note: these 'words' (valid or invalid) are all the permutations of the word fundis. These words are obtained by scrambling the letters in fundis.