5 letter words:
cuffo13,
4 letter words:
coff12,
cuff12,
miff12,
muff12,
fifi10,
coif9,
cuif9,
fico9,
foci9,
fuci9,
mico8,
3 letter words:
iff9,
off9,
fum8,
cum7,
mic7,
moc7,
fou6,
ufo6,
moi5,
mou5,
2 letter words:
if5,
of5,
mi4,
mo4,
mu4,
om4,
um4,
io2,
oi2,
ou2,