4 letter words:
waif10,
woof10,
obia6,
3 letter words:
faw9,
wof9,
bow8,
fab8,
fib8,
fob8,
wab8,
iwi6,
oaf6,
oof6,
wai6,
woo6,
abo5,
bio5,
boa5,
boi5,
boo5,
oba5,
obi5,
obo5,
2 letter words:
aw5,
fa5,
if5,
of5,
ow5,
wo5,
ab4,
ba4,
bi4,
bo4,
ob4,
ai2,
io2,
oi2,
oo2,