7 letter words:
biffies15,
bouffes15,
soubise9,
6 letter words:
bouffe14,
buffos14,
bouses8,
busies8,
ibises8,
5 letter words:
fuzes17,
bizes16,
zebus16,
sizes14,
biffs13,
boffs13,
buffi13,
buffo13,
buffs13,
fiefs11,
fifes11,
fosse8,
fuses8,
seifs8,
bises7,
bouse7,
buses7,
issei5,
issue5,
souse5,
4 letter words:
fuze16,
bize15,
zebu15,
size13,
biff12,
boff12,
buff12,
effs10,
fief10,
fife10,
offs10,
fibs9,
fobs9,
fubs9,
fess7,
feus7,
foes7,
foss7,
fuse7,
fuss7,
seif7,
bios6,
bise6,
boss6,
buss6,
ibis6,
obes6,
obis6,
sibs6,
sobs6,
subs6,
oses4,
seis4,
sous4,
sues4,
uses4,
3 letter words:
fez15,
fiz15,
biz14,
eff9,
iff9,
off9,
fib8,
fob8,
fub8,
efs6,
fes6,
feu6,
fie6,
foe6,
fou6,
ifs6,
bes5,
bio5,
bis5,
bos5,
bus5,
obe5,
obi5,
sib5,
sob5,
sub5,
ess3,
oes3,
ose3,
sei3,
sis3,
sos3,
sou3,
sue3,
use3,
2 letter words:
ef5,
fe5,
if5,
of5,
be4,
bi4,
bo4,
es2,
is2,
oe2,
oi2,
os2,
si2,
so2,
us2,