5 letter words:
promo9,
4 letter words:
mozo15,
zoom15,
orzo13,
ouzo13,
pomo8,
prom8,
romp8,
rump8,
moor6,
poor6,
pour6,
room6,
roup6,
3 letter words:
zoo12,
mop7,
pom7,
ump7,
moo5,
mor5,
poo5,
pro5,
pur5,
rom5,
rum5,
upo5,
urp5,
our3,
2 letter words:
mo4,
mu4,
om4,
op4,
um4,
up4,
or2,