7 letter words:
boxfish22,
4 letter words:
fish10,
fohs10,
bish9,
bohs9,
bosh9,
fibs9,
fobs9,
hobs9,
bios6,
bois6,
obis6,
3 letter words:
fix13,
fox13,
hox13,
box12,
six10,
sox10,
xis10,
foh9,
boh8,
fib8,
fob8,
hob8,
his6,
hoi6,
hos6,
ifs6,
ish6,
ohs6,
sif6,
soh6,
bio5,
bis5,
boi5,
bos5,
obi5,
obs5,
sib5,
sob5,
ios3,
iso3,
2 letter words:
ox9,
xi9,
hi5,
ho5,
if5,
of5,
oh5,
sh5,
bi4,
bo4,
ob4,
io2,
is2,
oi2,
os2,
si2,
so2,
