whists hwists wihsts iwhsts hiwsts ihwsts whsits hwsits wshits swhits hswits shwits wishts iwshts wsihts swihts iswhts siwhts hiswts ihswts hsiwts shiwts ishwts sihwts whitss hwitss wihtss iwhtss hiwtss ihwtss whtiss hwtiss wthiss twhiss htwiss thwiss withss iwthss wtihss twihss itwhss tiwhss hitwss ihtwss htiwss thiwss ithwss tihwss whstis hwstis wshtis swhtis hswtis shwtis whtsis hwtsis wthsis twhsis htwsis thwsis wsthis swthis wtshis twshis stwhis tswhis hstwis shtwis htswis thswis sthwis tshwis wisths iwsths wsiths swiths iswths siwths witshs iwtshs wtishs twishs itwshs tiwshs wstihs swtihs wtsihs twsihs stwihs tswihs istwhs sitwhs itswhs tiswhs stiwhs tsiwhs histws ihstws hsitws shitws ishtws sihtws hitsws ihtsws htisws thisws ithsws tihsws hstiws shtiws htsiws thsiws sthiws tshiws isthws sithws itshws tishws stihws tsihws whisst hwisst wihsst iwhsst hiwsst ihwsst whsist hwsist wshist swhist hswist shwist wishst iwshst wsihst swihst iswhst siwhst hiswst ihswst hsiwst shiwst ishwst sihwst whisst hwisst wihsst iwhsst hiwsst ihwsst whsist hwsist wshist swhist hswist shwist wishst iwshst wsihst swihst iswhst siwhst hiswst ihswst hsiwst shiwst ishwst sihwst whssit hwssit wshsit swhsit hswsit shwsit whssit hwssit wshsit swhsit hswsit shwsit wsshit swshit wsshit swshit sswhit sswhit hsswit shswit hsswit shswit sshwit sshwit wissht iwssht wsisht swisht iswsht siwsht wissht iwssht wsisht swisht iswsht siwsht wssiht swsiht wssiht swsiht sswiht sswiht isswht siswht isswht siswht ssiwht ssiwht hisswt ihsswt hsiswt shiswt ishswt sihswt hisswt ihsswt hsiswt shiswt ishswt sihswt hssiwt shsiwt hssiwt shsiwt sshiwt sshiwt isshwt sishwt isshwt sishwt ssihwt ssihwt whitss hwitss wihtss iwhtss hiwtss ihwtss whtiss hwtiss wthiss twhiss htwiss thwiss withss iwthss wtihss twihss itwhss tiwhss hitwss ihtwss htiwss thiwss ithwss tihwss whists hwists wihsts iwhsts hiwsts ihwsts whsits hwsits wshits swhits hswits shwits wishts iwshts wsihts swihts iswhts siwhts hiswts ihswts hsiwts shiwts ishwts sihwts whtsis hwtsis wthsis twhsis htwsis thwsis whstis hwstis wshtis swhtis hswtis shwtis wtshis twshis wsthis swthis tswhis stwhis htswis thswis hstwis shtwis tshwis sthwis witshs iwtshs wtishs twishs itwshs tiwshs wisths iwsths wsiths swiths iswths siwths wtsihs twsihs wstihs swtihs tswihs stwihs itswhs tiswhs istwhs sitwhs tsiwhs stiwhs hitsws ihtsws htisws thisws ithsws tihsws histws ihstws hsitws shitws ishtws sihtws htsiws thsiws hstiws shtiws tshiws sthiws itshws tishws isthws sithws tsihws stihws whstsi hwstsi wshtsi swhtsi hswtsi shwtsi whtssi hwtssi wthssi twhssi htwssi thwssi wsthsi swthsi wtshsi twshsi stwhsi tswhsi hstwsi shtwsi htswsi thswsi sthwsi tshwsi whssti hwssti wshsti swhsti hswsti shwsti whssti hwssti wshsti swhsti hswsti shwsti wsshti swshti wsshti swshti sswhti sswhti hsswti shswti hsswti shswti sshwti sshwti whtssi hwtssi wthssi twhssi htwssi thwssi whstsi hwstsi wshtsi swhtsi hswtsi shwtsi wtshsi twshsi wsthsi swthsi tswhsi stwhsi htswsi thswsi hstwsi shtwsi tshwsi sthwsi wstshi swtshi wtsshi twsshi stwshi tswshi wssthi swsthi wssthi swsthi sswthi sswthi wtsshi twsshi wstshi swtshi tswshi stwshi stswhi tsswhi sstwhi sstwhi tsswhi stswhi hstswi shtswi htsswi thsswi sthswi tshswi hsstwi shstwi hsstwi shstwi sshtwi sshtwi htsswi thsswi hstswi shtswi tshswi sthswi stshwi tsshwi ssthwi ssthwi tsshwi stshwi wistsh iwstsh wsitsh switsh iswtsh siwtsh witssh iwtssh wtissh twissh itwssh tiwssh wstish swtish wtsish twsish stwish tswish istwsh sitwsh itswsh tiswsh stiwsh tsiwsh wissth iwssth wsisth swisth iswsth siwsth wissth iwssth wsisth swisth iswsth siwsth wssith swsith wssith swsith sswith sswith isswth siswth isswth siswth ssiwth ssiwth witssh iwtssh wtissh twissh itwssh tiwssh wistsh iwstsh wsitsh switsh iswtsh siwtsh wtsish twsish wstish swtish tswish stwish itswsh tiswsh istwsh sitwsh tsiwsh stiwsh wstsih swtsih wtssih twssih stwsih tswsih wsstih swstih wsstih swstih sswtih sswtih wtssih twssih wstsih swtsih tswsih stwsih stswih tsswih sstwih sstwih tsswih stswih istswh sitswh itsswh tisswh stiswh tsiswh isstwh sistwh isstwh sistwh ssitwh ssitwh itsswh tisswh istswh sitswh tsiswh stiswh stsiwh tssiwh sstiwh sstiwh tssiwh stsiwh histsw ihstsw hsitsw shitsw ishtsw sihtsw hitssw ihtssw htissw thissw ithssw tihssw hstisw shtisw htsisw thsisw sthisw tshisw isthsw sithsw itshsw tishsw stihsw tsihsw hisstw ihsstw hsistw shistw ishstw sihstw hisstw ihsstw hsistw shistw ishstw sihstw hssitw shsitw hssitw shsitw sshitw sshitw isshtw sishtw isshtw sishtw ssihtw ssihtw hitssw ihtssw htissw thissw ithssw tihssw histsw ihstsw hsitsw shitsw ishtsw sihtsw htsisw thsisw hstisw shtisw tshisw sthisw itshsw tishsw isthsw sithsw tsihsw stihsw hstsiw shtsiw htssiw thssiw sthsiw tshsiw hsstiw shstiw hsstiw shstiw sshtiw sshtiw htssiw thssiw hstsiw shtsiw tshsiw sthsiw stshiw tsshiw ssthiw ssthiw tsshiw stshiw istshw sitshw itsshw tisshw stishw tsishw issthw sisthw issthw sisthw ssithw ssithw itsshw tisshw istshw sitshw tsishw stishw stsihw tssihw sstihw sstihw tssihw stsihw
Note: these 'words' (valid or invalid) are all the permutations of the word whists. These words are obtained by scrambling the letters in whists.