6 letter words:
finder10,
friend10,
redfin10,
refind10,
5 letter words:
fiend9,
fined9,
fired9,
fried9,
finer8,
infer8,
diner6,
4 letter words:
defi8,
fend8,
find8,
fern7,
fine7,
fire7,
firn7,
neif7,
reif7,
rife7,
deni5,
dine5,
dire5,
ired5,
nerd5,
nide5,
rend5,
ride5,
rind5,
rein4,
3 letter words:
def7,
dif7,
fed7,
fid7,
fen6,
fer6,
fie6,
fin6,
fir6,
ref6,
rif6,
den4,
die4,
din4,
end4,
red4,
rid4,
ern3,
ire3,
rei3,
rin3,
2 letter words:
ef5,
fe5,
if5,
de3,
ed3,
id3,
en2,
er2,
in2,
ne2,
re2,