5 letter words:
punas7,
4 letter words:
naps6,
pans6,
puna6,
puns6,
snap6,
span6,
spun6,
upas6,
anus4,
3 letter words:
asp5,
nap5,
pan5,
pas5,
pun5,
pus5,
sap5,
spa5,
sup5,
ups5,
nas3,
nus3,
san3,
sau3,
sun3,
uns3,
2 letter words:
pa4,
up4,
an2,
as2,
na2,
nu2,
un2,
us2,