7 letter words:
feedbox20,
5 letter words:
fedex16,
foxed16,
boxed15,
exode13,
4 letter words:
exed12,
beef9,
feeb9,
feed8,
feod8,
bede7,
bode7,
debe7,
3 letter words:
fox13,
box12,
dex11,
exo10,
fob8,
def7,
dof7,
fed7,
bed6,
bod6,
deb6,
dob6,
fee6,
foe6,
bee5,
obe5,
dee4,
doe4,
ode4,
2 letter words:
ex9,
ox9,
ef5,
fe5,
of5,
be4,
bo4,
ob4,
de3,
do3,
ed3,
od3,
ee2,
oe2,