6 letter words:
boffin14,
5 letter words:
befit10,
feint8,
often8,
bento7,
beton7,
biont7,
boite7,
4 letter words:
biff12,
boff12,
fief10,
fife10,
teff10,
tiff10,
toff10,
fine7,
fino7,
foin7,
font7,
info7,
neif7,
bent6,
bine6,
bint6,
bite6,
bone6,
ebon6,
obit6,
into4,
nite4,
note4,
tine4,
tone4,
3 letter words:
eff9,
iff9,
off9,
fib8,
fob8,
eft6,
fen6,
fet6,
fie6,
fin6,
fit6,
foe6,
fon6,
oft6,
ben5,
bet5,
bin5,
bio5,
bit5,
bot5,
neb5,
nib5,
nob5,
obe5,
obi5,
eon3,
ion3,
net3,
nit3,
not3,
one3,
ten3,
tie3,
tin3,
toe3,
ton3,
2 letter words:
ef5,
fe5,
if5,
of5,
be4,
bi4,
bo4,
en2,
et2,
in2,
it2,
ne2,
no2,
oe2,
oi2,
on2,
ti2,
to2,