oubit uobit obuit bouit uboit buoit ouibt uoibt oiubt ioubt uiobt iuobt obiut boiut oibut iobut biout ibout ubiot buiot uibot iubot biuot ibuot oubti uobti obuti bouti uboti buoti outbi uotbi otubi toubi utobi tuobi obtui botui otbui tobui btoui tboui ubtoi butoi utboi tuboi btuoi tbuoi ouitb uoitb oiutb ioutb uiotb iuotb outib uotib otuib touib utoib tuoib oitub iotub otiub toiub itoub tioub uitob iutob utiob tuiob ituob tiuob obitu boitu oibtu iobtu biotu ibotu obtiu botiu otbiu tobiu btoiu tboiu oitbu iotbu otibu toibu itobu tiobu bitou ibtou btiou tbiou itbou tibou ubito buito uibto iubto biuto ibuto ubtio butio utbio tubio btuio tbuio uitbo iutbo utibo tuibo itubo tiubo bituo ibtuo btiuo tbiuo itbuo tibuo
Note: these 'words' (valid or invalid) are all the permutations of the word oubit. These words are obtained by scrambling the letters in oubit.