4 letter words:
wows10,
bows9,
swob9,
woos7,
bios6,
bois6,
boos6,
obis6,
obos6,
3 letter words:
wow9,
bow8,
sow6,
wis6,
woo6,
wos6,
wus6,
bio5,
bis5,
boi5,
boo5,
bos5,
bus5,
obi5,
obo5,
obs5,
sib5,
sob5,
sub5,
ios3,
iso3,
oos3,
ous3,
sou3,
sui3,
2 letter words:
ow5,
wo5,
bi4,
bo4,
ob4,
io2,
is2,
oi2,
oo2,
os2,
ou2,
si2,
so2,
us2,