6 letter words:
faunal9,
5 letter words:
fauna8,
banal7,
lauan5,
4 letter words:
flab9,
flub9,
alfa7,
faun7,
flan7,
alba6,
baal6,
buna6,
alan4,
anal4,
luna4,
nala4,
ulan4,
ulna4,
3 letter words:
fab8,
fub8,
fan6,
flu6,
fun6,
aba5,
alb5,
baa5,
bal5,
ban5,
bun5,
lab5,
nab5,
nub5,
aal3,
ala3,
ana3,
2 letter words:
fa5,
ab4,
ba4,
aa2,
al2,
an2,
la2,
na2,
nu2,
un2,