5 letter words:
fauna8,
furan8,
ruana5,
4 letter words:
haaf10,
hauf10,
afar7,
faan7,
faun7,
faur7,
frau7,
haar7,
harn7,
arna4,
aura4,
rana4,
raun4,
3 letter words:
fah9,
aah6,
aha6,
arf6,
auf6,
faa6,
fan6,
far6,
fra6,
fun6,
fur6,
han6,
hun6,
nah6,
rah6,
ana3,
aua3,
nur3,
ran3,
run3,
urn3,
2 letter words:
ah5,
fa5,
ha5,
uh5,
aa2,
an2,
ar2,
na2,
nu2,
un2,
ur2,