6 letter words:
obiism10,
5 letter words:
wombs12,
umbos9,
4 letter words:
womb11,
bows9,
mows9,
swim9,
swob9,
swum9,
bums8,
mibs8,
mobs8,
umbo8,
iwis7,
bios6,
ibis6,
miso6,
obis6,
sumo6,
3 letter words:
bow8,
mow8,
bum7,
mib7,
mob7,
sow6,
wis6,
wos6,
bio5,
bis5,
bos5,
bus5,
ism5,
mis5,
mos5,
mus5,
obi5,
oms5,
sib5,
sim5,
sob5,
som5,
sub5,
sum5,
sou3,
2 letter words:
ow5,
wo5,
bi4,
bo4,
mi4,
mo4,
mu4,
om4,
um4,
is2,
oi2,
os2,
si2,
so2,
us2,