5 letter words:
abaft10,
4 letter words:
baff12,
naff10,
baft9,
faan7,
bant6,
anta4,
tana4,
3 letter words:
aff9,
fab8,
aft6,
faa6,
fan6,
fat6,
aba5,
baa5,
ban5,
bat5,
nab5,
tab5,
ana3,
ant3,
nat3,
tan3,
2 letter words:
fa5,
ab4,
ba4,
aa2,
an2,
at2,
na2,
ta2,