6 letter words:
befits11,
5 letter words:
befit10,
feist8,
bites7,
4 letter words:
fibs9,
efts7,
fest7,
fets7,
fist7,
fits7,
seif7,
sift7,
best6,
bets6,
bise6,
bite6,
bits6,
site4,
ties4,
3 letter words:
fib8,
efs6,
eft6,
fes6,
fet6,
fie6,
fit6,
ifs6,
bes5,
bet5,
bis5,
bit5,
sib5,
its3,
sei3,
set3,
sit3,
tie3,
tis3,
2 letter words:
ef5,
fe5,
if5,
be4,
bi4,
es2,
et2,
is2,
it2,
si2,
ti2,
