6 letter words:
fadein10,
fanned10,
finned10,
5 letter words:
fiend9,
fined9,
inned6,
inane5,
4 letter words:
deaf8,
defi8,
fade8,
fend8,
find8,
fain7,
fane7,
fine7,
naif7,
neif7,
aide5,
dean5,
deni5,
dine5,
idea5,
nide5,
nine4,
3 letter words:
def7,
dif7,
fad7,
fed7,
fid7,
fan6,
fen6,
fie6,
fin6,
aid4,
and4,
dan4,
den4,
die4,
din4,
end4,
ain3,
ane3,
ani3,
inn3,
nae3,
nan3,
2 letter words:
ef5,
fa5,
fe5,
if5,
ad3,
de3,
ed3,
id3,
ae2,
ai2,
an2,
en2,
in2,
na2,
ne2,