11 letter words:
beneficence20,
8 letter words:
benefice15,
7 letter words:
benefic14,
6 letter words:
fennec11,
5 letter words:
fence10,
benne7,
benni7,
niece7,
4 letter words:
beef9,
feeb9,
fice9,
bice8,
fine7,
neif7,
been6,
bene6,
bine6,
cine6,
nice6,
nene4,
nine4,
3 letter words:
fib8,
fee6,
fen6,
fie6,
fin6,
bee5,
ben5,
bin5,
cee5,
ice5,
neb5,
nib5,
inn3,
nee3,
2 letter words:
ef5,
fe5,
if5,
be4,
bi4,
en2,
in2,
ne2,