6 letter words:
numbly13,
unbusy11,
5 letter words:
numbs9,
4 letter words:
busy9,
buys9,
lyms9,
sumy9,
bums8,
numb8,
luny7,
buns6,
lums6,
muns6,
nubs6,
slub6,
slum6,
snub6,
sulu4,
ulus4,
3 letter words:
buy8,
bys8,
lym8,
yum8,
bum7,
nys6,
sly6,
sny6,
syn6,
yus6,
bun5,
bus5,
lum5,
mun5,
mus5,
nub5,
sub5,
sum5,
umu5,
nus3,
sun3,
ulu3,
uns3,
2 letter words:
by7,
my7,
ny5,
yu5,
mu4,
um4,
nu2,
un2,
us2,