10 letter words:
niffnaffed23,
8 letter words:
niffnaff20,
7 letter words:
affined14,
6 letter words:
faffed16,
affied13,
naffed13,
niffed13,
affine12,
fadein10,
fained10,
fanned10,
finned10,
fainne9,
5 letter words:
fifed12,
fiend9,
fined9,
faine8,
daine6,
dinna6,
inned6,
inane5,
4 letter words:
faff13,
daff11,
diff11,
fief10,
fife10,
naff10,
niff10,
deaf8,
defi8,
deif8,
fade8,
fand8,
fend8,
find8,
fain7,
fane7,
feni7,
fine7,
naif7,
neif7,
nief7,
nife7,
aide5,
dean5,
deni5,
dine5,
idea5,
nide5,
nied5,
aine4,
eina4,
nain4,
nane4,
nine4,
3 letter words:
aff9,
eff9,
iff9,
def7,
dif7,
fad7,
fed7,
fid7,
fae6,
fan6,
fen6,
fie6,
fin6,
nef6,
aid4,
and4,
dae4,
dan4,
dei4,
den4,
die4,
din4,
end4,
ide4,
ned4,
nid4,
ain3,
ane3,
ani3,
ann3,
ean3,
inn3,
nae3,
nan3,
nie3,
2 letter words:
ef5,
fa5,
fe5,
if5,
ad3,
da3,
de3,
di3,
ed3,
id3,
ae2,
ai2,
an2,
ea2,
en2,
in2,
na2,
ne2,