thous htous tohus othus hotus ohtus thuos htuos tuhos uthos hutos uhtos touhs otuhs tuohs utohs ouths uoths houts ohuts huots uhots ouhts uohts thosu htosu tohsu othsu hotsu ohtsu thsou htsou tshou sthou hstou shtou toshu otshu tsohu stohu osthu sothu hostu ohstu hsotu shotu oshtu sohtu thuso htuso tuhso uthso hutso uhtso thsuo htsuo tshuo sthuo hstuo shtuo tusho utsho tsuho stuho ustho sutho husto uhsto hsuto shuto ushto suhto toush otush tuosh utosh outsh uotsh tosuh otsuh tsouh stouh ostuh sotuh tusoh utsoh tsuoh stuoh ustoh sutoh ousth uosth osuth south usoth suoth houst ohust huost uhost ouhst uohst hosut ohsut hsout shout oshut sohut husot uhsot hsuot shuot ushot suhot ousht uosht osuht souht usoht suoht
Note: these 'words' (valid or invalid) are all the permutations of the word thous. These words are obtained by scrambling the letters in thous.