6 letter words:
fullan9,
onfall9,
unfool9,
5 letter words:
afoul8,
aloof8,
loofa8,
llano5,
nulla5,
4 letter words:
fall7,
fano7,
faun7,
flan7,
foal7,
fool7,
foul7,
full7,
lauf7,
loaf7,
loof7,
loan4,
loon4,
loun4,
luna4,
noll4,
nolo4,
noul4,
null4,
olla4,
ulan4,
ulna4,
3 letter words:
alf6,
auf6,
fan6,
flu6,
fon6,
fou6,
fun6,
oaf6,
oof6,
ufo6,
all3,
loo3,
lou3,
noo3,
ono3,
oon3,
2 letter words:
fa5,
of5,
al2,
an2,
la2,
lo2,
na2,
no2,
nu2,
on2,
oo2,
ou2,
un2,