6 letter words:
bututs8,
5 letter words:
busty10,
butty10,
tutty8,
busts7,
butts7,
butut7,
stubs7,
tutus5,
4 letter words:
busy9,
buys9,
buss6,
bust6,
buts6,
butt6,
stub6,
subs6,
tubs6,
tuts4,
tutu4,
3 letter words:
buy8,
bys8,
sty6,
bus5,
but5,
sub5,
tub5,
tut3,
uts3,
2 letter words:
by7,
us2,
ut2,