4 letter words:
hoof10,
boho9,
forb9,
hobo9,
roof7,
biro6,
boor6,
brio6,
broo6,
3 letter words:
foh9,
fib8,
fob8,
hob8,
fir6,
for6,
fro6,
oho6,
ooh6,
rho6,
rif6,
bio5,
boo5,
bro5,
obi5,
orb5,
rib5,
rob5,
2 letter words:
hi5,
ho5,
if5,
of5,
oh5,
bi4,
bo4,
oi2,
or2,