9 letter words:
dumbfound18,
8 letter words:
dumfound15,
5 letter words:
dumbo10,
fondu9,
found9,
bound8,
mound8,
4 letter words:
bumf11,
dumb9,
fond8,
fund8,
numb8,
umbo8,
bond7,
bund7,
doum7,
muon6,
udon5,
undo5,
3 letter words:
fob8,
fub8,
bum7,
fud7,
mob7,
bod6,
bud6,
dom6,
dub6,
fon6,
fou6,
fun6,
mod6,
mud6,
bun5,
dud5,
mon5,
mun5,
nob5,
nom5,
nub5,
odd5,
don4,
dun4,
duo4,
nod4,
oud4,
udo4,
2 letter words:
of5,
bo4,
mo4,
mu4,
om4,
um4,
do3,
od3,
no2,
nu2,
on2,
un2,