4 letter words:
fozy19,
fiky14,
kybo13,
boyf12,
3 letter words:
fiz15,
biz14,
kif10,
yok10,
bok9,
foy9,
kob9,
boy8,
fib8,
fob8,
yob8,
koi7,
oik7,
bio5,
boi5,
obi5,
2 letter words:
zo11,
ky9,
fy8,
by7,
ki6,
ko6,
if5,
of5,
oy5,
yo5,
bi4,
bo4,
ob4,
io2,
oi2,