5 letter words:
fauna8,
furan8,
ruana5,
4 letter words:
zarf16,
azan13,
azon13,
zona13,
afar7,
fano7,
faro7,
faun7,
fora7,
four7,
anoa4,
aura4,
roan4,
3 letter words:
azo12,
zoa12,
arf6,
fan6,
far6,
fon6,
for6,
fou6,
fro6,
fun6,
fur6,
oaf6,
ana3,
nor3,
oar3,
ora3,
our3,
ran3,
run3,
urn3,
2 letter words:
za11,
fa5,
of5,
aa2,
an2,
ar2,
na2,
no2,
nu2,
on2,
or2,
un2,