sooth osoth sooth osoth oosth oosth sotoh ostoh stooh tsooh otsoh tosoh sotoh ostoh stooh tsooh otsoh tosoh ootsh ootsh otosh toosh otosh toosh sooht osoht sooht osoht oosht oosht sohot oshot shoot hsoot ohsot hosot sohot oshot shoot hsoot ohsot hosot oohst oohst ohost hoost ohost hoost sotho ostho stoho tsoho otsho tosho sohto oshto shoto hsoto ohsto hosto sthoo tshoo shtoo hstoo thsoo htsoo othso tohso ohtso hotso thoso htoso sotho ostho stoho tsoho otsho tosho sohto oshto shoto hsoto ohsto hosto sthoo tshoo shtoo hstoo thsoo htsoo othso tohso ohtso hotso thoso htoso ooths ooths otohs toohs otohs toohs oohts oohts ohots hoots ohots hoots othos tohos ohtos hotos thoos htoos othos tohos ohtos hotos thoos htoos
Note: these 'words' (valid or invalid) are all the permutations of the word sooth. These words are obtained by scrambling the letters in sooth.