4 letter words:
buoy9,
bury9,
orby9,
ruby9,
your7,
biro6,
brio6,
3 letter words:
boy8,
buy8,
yob8,
you6,
bio5,
boi5,
bor5,
bro5,
bru5,
bur5,
obi5,
orb5,
rib5,
rob5,
rub5,
urb5,
our3,
2 letter words:
by7,
oy5,
yo5,
yu5,
bi4,
bo4,
ob4,
io2,
oi2,
or2,
ou2,
ur2,