5 letter words:
noups7,
oupas7,
punas7,
4 letter words:
apos6,
apso6,
naps6,
noup6,
opus6,
oupa6,
oups6,
pans6,
poas6,
pons6,
puna6,
puns6,
snap6,
soap6,
soup6,
span6,
spun6,
upas6,
upon6,
anus4,
naos4,
nous4,
onus4,
3 letter words:
apo5,
asp5,
nap5,
ops5,
oup5,
pan5,
pas5,
poa5,
pos5,
pun5,
pus5,
sap5,
sop5,
spa5,
sup5,
upo5,
ups5,
nas3,
nos3,
nus3,
ons3,
ous3,
san3,
sau3,
son3,
sou3,
sun3,
uns3,
2 letter words:
op4,
pa4,
po4,
up4,
an2,
as2,
na2,
no2,
nu2,
on2,
os2,
ou2,
so2,
un2,
us2,