7 letter words:
boffins15,
6 letter words:
biffos14,
boffin14,
5 letter words:
biffo13,
biffs13,
boffs13,
niffs11,
sniff11,
finos8,
foins8,
infos8,
bison7,
4 letter words:
biff12,
boff12,
niff10,
offs10,
fibs9,
fobs9,
fino7,
fins7,
foin7,
fons7,
info7,
bins6,
bios6,
bois6,
nibs6,
nobs6,
obis6,
snib6,
snob6,
ions4,
3 letter words:
iff9,
off9,
fib8,
fob8,
fin6,
fon6,
ifs6,
sif6,
bin5,
bio5,
bis5,
boi5,
bon5,
bos5,
nib5,
nob5,
obi5,
obs5,
sib5,
sob5,
ins3,
ion3,
ios3,
iso3,
nis3,
nos3,
ons3,
sin3,
son3,
2 letter words:
if5,
of5,
bi4,
bo4,
ob4,
in2,
io2,
is2,
no2,
oi2,
on2,
os2,
si2,
so2,
