shoat hsoat sohat oshat hosat ohsat shaot hsaot sahot ashot hasot ahsot soaht osaht saoht asoht oasht aosht hoast ohast haost ahost oahst aohst shota hsota sohta oshta hosta ohsta shtoa hstoa sthoa tshoa htsoa thsoa sotha ostha stoha tsoha otsha tosha hotsa ohtsa htosa thosa othsa tohsa shato hsato sahto ashto hasto ahsto shtao hstao sthao tshao htsao thsao satho astho staho tsaho atsho tasho hatso ahtso htaso thaso athso tahso soath osath saoth asoth oasth aosth sotah ostah stoah tsoah otsah tosah satoh astoh staoh tsaoh atsoh tasoh oatsh aotsh otash toash atosh taosh hoats ohats haots ahots oahts aohts hotas ohtas htoas thoas othas tohas hatos ahtos htaos thaos athos tahos oaths aoths otahs toahs atohs taohs
Note: these 'words' (valid or invalid) are all the permutations of the word shoat. These words are obtained by scrambling the letters in shoat.