5 letter words:
fauna8,
taunt5,
4 letter words:
naff10,
tuff10,
faun7,
tufa7,
tuft7,
anta4,
aunt4,
taut4,
tuna4,
3 letter words:
aff9,
aft6,
fan6,
fat6,
fun6,
ana3,
ant3,
att3,
nut3,
tan3,
tat3,
tau3,
tun3,
tut3,
uta3,
2 letter words:
fa5,
aa2,
an2,
at2,
na2,
nu2,
ta2,
un2,
ut2,