sixth isxth sxith xsith ixsth xisth sitxh istxh stixh tsixh itsxh tisxh sxtih xstih stxih tsxih xtsih txsih ixtsh xitsh itxsh tixsh xtish txish sixht isxht sxiht xsiht ixsht xisht sihxt ishxt shixt hsixt ihsxt hisxt sxhit xshit shxit hsxit xhsit hxsit ixhst xihst ihxst hixst xhist hxist sithx isthx stihx tsihx itshx tishx sihtx ishtx shitx hsitx ihstx histx sthix tshix shtix hstix thsix htsix ithsx tihsx ihtsx hitsx thisx htisx sxthi xsthi stxhi tsxhi xtshi txshi sxhti xshti shxti hsxti xhsti hxsti sthxi tshxi shtxi hstxi thsxi htsxi xthsi txhsi xhtsi hxtsi thxsi htxsi ixths xiths itxhs tixhs xtihs txihs ixhts xihts ihxts hixts xhits hxits ithxs tihxs ihtxs hitxs thixs htixs xthis txhis xhtis hxtis thxis htxis
Note: these 'words' (valid or invalid) are all the permutations of the word sixth. These words are obtained by scrambling the letters in sixth.