5 letter words:
bunds8,
4 letter words:
busy9,
buys9,
sync9,
cubs8,
undy8,
buds7,
bund7,
cuds7,
dubs7,
scud7,
buns6,
nubs6,
snub6,
duns5,
3 letter words:
buy8,
bys8,
cub7,
bud6,
cud6,
dub6,
syn6,
bun5,
bus5,
nub5,
sub5,
dun4,
nus3,
sun3,
uns3,
2 letter words:
by7,
nu2,
un2,
us2,