smiles msiles simles ismles misles imsles smlies mslies slmies lsmies mlsies lmsies silmes islmes slimes lsimes ilsmes lismes milses imlses mlises lmises ilmses limses smiels msiels simels ismels misels imsels smeils mseils semils esmils mesils emsils siemls isemls seimls esimls iesmls eismls miesls imesls meisls emisls iemsls eimsls smleis msleis slmeis lsmeis mlseis lmseis smelis mselis semlis esmlis meslis emslis slemis lsemis selmis eslmis lesmis elsmis mlesis lmesis melsis emlsis lemsis elmsis silems islems sliems lsiems ilsems lisems sielms iselms seilms esilms ieslms eislms sleims lseims selims eslims lesims elsims ilesms liesms ielsms eilsms leisms elisms miless imless mliess lmiess ilmess limess mielss imelss meilss emilss iemlss eimlss mleiss lmeiss meliss emliss lemiss elmiss ilemss liemss ielmss eilmss leimss elimss smilse msilse simlse ismlse mislse imslse smlise mslise slmise lsmise mlsise lmsise silmse islmse slimse lsimse ilsmse lismse milsse imlsse mlisse lmisse ilmsse limsse smisle msisle simsle ismsle missle imssle smsile mssile ssmile ssmile mssile smsile sismle issmle ssimle ssimle issmle sismle missle imssle msisle smisle ismsle simsle smlsie mslsie slmsie lsmsie mlssie lmssie smslie msslie ssmlie ssmlie msslie smslie slsmie lssmie sslmie sslmie lssmie slsmie mlssie lmssie mslsie smlsie lsmsie slmsie silsme islsme slisme lsisme ilssme lissme sislme isslme ssilme ssilme isslme sislme slsime lssime sslime sslime lssime slsime ilssme lissme islsme silsme lsisme slisme milsse imlsse mlisse lmisse ilmsse limsse mislse imslse msilse smilse ismlse simlse mlsise lmsise mslise smlise lsmise slmise ilsmse lismse islmse silmse lsimse slimse smiesl msiesl simesl ismesl misesl imsesl smeisl mseisl semisl esmisl mesisl emsisl siemsl isemsl seimsl esimsl iesmsl eismsl miessl imessl meissl emissl iemssl eimssl smisel msisel simsel ismsel missel imssel smsiel mssiel ssmiel ssmiel mssiel smsiel sismel issmel ssimel ssimel issmel sismel missel imssel msisel smisel ismsel simsel smesil msesil semsil esmsil messil emssil smseil msseil ssmeil ssmeil msseil smseil sesmil essmil ssemil ssemil essmil sesmil messil emssil msesil smesil esmsil semsil siesml isesml seisml esisml iessml eissml siseml isseml ssieml ssieml isseml siseml sesiml essiml sseiml sseiml essiml sesiml iessml eissml isesml siesml esisml seisml miessl imessl meissl emissl iemssl eimssl misesl imsesl msiesl smiesl ismesl simesl mesisl emsisl mseisl smeisl esmisl semisl iesmsl eismsl isemsl siemsl esimsl seimsl smlesi mslesi slmesi lsmesi mlsesi lmsesi smelsi mselsi semlsi esmlsi meslsi emslsi slemsi lsemsi selmsi eslmsi lesmsi elsmsi mlessi lmessi melssi emlssi lemssi elmssi smlsei mslsei slmsei lsmsei mlssei lmssei smslei msslei ssmlei ssmlei msslei smslei slsmei lssmei sslmei sslmei lssmei slsmei mlssei lmssei mslsei smlsei lsmsei slmsei smesli msesli semsli esmsli messli emssli smseli msseli ssmeli ssmeli msseli smseli sesmli essmli ssemli ssemli essmli sesmli messli emssli msesli smesli esmsli semsli slesmi lsesmi selsmi eslsmi lessmi elssmi slsemi lssemi sslemi sslemi lssemi slsemi seslmi esslmi sselmi sselmi esslmi seslmi lessmi elssmi lsesmi slesmi eslsmi selsmi mlessi lmessi melssi emlssi lemssi elmssi mlsesi lmsesi mslesi smlesi lsmesi slmesi meslsi emslsi mselsi smelsi esmlsi semlsi lesmsi elsmsi lsemsi slemsi eslmsi selmsi silesm islesm sliesm lsiesm ilsesm lisesm sielsm iselsm seilsm esilsm ieslsm eislsm sleism lseism selism eslism lesism elsism ilessm liessm ielssm eilssm leissm elissm silsem islsem slisem lsisem ilssem lissem sislem isslem ssilem ssilem isslem sislem slsiem lssiem ssliem ssliem lssiem slsiem ilssem lissem islsem silsem lsisem slisem sieslm iseslm seislm esislm iesslm eisslm siselm isselm ssielm ssielm isselm siselm sesilm essilm sseilm sseilm essilm sesilm iesslm eisslm iseslm sieslm esislm seislm slesim lsesim selsim eslsim lessim elssim slseim lsseim ssleim ssleim lsseim slseim seslim esslim sselim sselim esslim seslim lessim elssim lsesim slesim eslsim selsim ilessm liessm ielssm eilssm leissm elissm ilsesm lisesm islesm silesm lsiesm sliesm ieslsm eislsm iselsm sielsm esilsm seilsm lesism elsism lseism sleism eslism selism miless imless mliess lmiess ilmess limess mielss imelss meilss emilss iemlss eimlss mleiss lmeiss meliss emliss lemiss elmiss ilemss liemss ielmss eilmss leimss elimss milses imlses mlises lmises ilmses limses misles imsles msiles smiles ismles simles mlsies lmsies mslies smlies lsmies slmies ilsmes lismes islmes silmes lsimes slimes miesls imesls meisls emisls iemsls eimsls misels imsels msiels smiels ismels simels mesils emsils mseils smeils esmils semils iesmls eismls isemls siemls esimls seimls mlesis lmesis melsis emlsis lemsis elmsis mlseis lmseis msleis smleis lsmeis slmeis meslis emslis mselis smelis esmlis semlis lesmis elsmis lsemis slemis eslmis selmis ilesms liesms ielsms eilsms leisms elisms ilsems lisems islems silems lsiems sliems ieslms eislms iselms sielms esilms seilms lesims elsims lseims sleims eslims selims
Note: these 'words' (valid or invalid) are all the permutations of the word smiles. These words are obtained by scrambling the letters in smiles.