4 letter words:
mows9,
sowm9,
swum9,
woos7,
moos6,
mous6,
muso6,
ooms6,
soom6,
soum6,
sumo6,
3 letter words:
mow8,
sow6,
woo6,
wos6,
wus6,
moo5,
mos5,
mou5,
mus5,
oms5,
oom5,
som5,
sum5,
oos3,
ous3,
sou3,
2 letter words:
ow5,
wo5,
mo4,
mu4,
om4,
um4,
oo2,
os2,
ou2,
so2,
us2,