5 letter words:
boysy13,
4 letter words:
boys9,
sybo9,
toby9,
yobs9,
toys7,
bots6,
stob6,
3 letter words:
zos12,
boy8,
bys8,
yob8,
oys6,
soy6,
sty6,
toy6,
yos6,
bos5,
bot5,
obs5,
sob5,
sot3,
2 letter words:
zo11,
by7,
oy5,
yo5,
bo4,
ob4,
os2,
so2,
st2,
to2,