4 letter words:
fumy12,
bumf11,
fury10,
bury9,
ruby9,
numb8,
burn6,
3 letter words:
fry9,
buy8,
fub8,
fum8,
yum8,
bum7,
fun6,
fur6,
bru5,
bun5,
bur5,
mun5,
nub5,
rub5,
rum5,
urb5,
nur3,
run3,
urn3,
2 letter words:
fy8,
by7,
my7,
ny5,
yu5,
mu4,
um4,
nu2,
un2,
ur2,